a second nerve impulse cannot be generated until

First, diffusion of the neurotransmitter across the synaptic cleft takes approximately 0.05 millisecond. A neural circuit in which a single impulse is transmitted over and over is a ________. b) ions always move passively across membranes When a sensory neuron is excited by some form of nerdy, the resulting graded potential is called a(n) ____, If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon _____. Direct-acting neurotransmitters ________. A) the membrane potential has been reestablished B) the Na ions have been pumped back into the cell C) proteins have been resynthesized D) all sodium gates are closed. the same ultimate effect. In the polarized state, the axon membrane is more permeable to potassium ions instead of sodium ions and as a result, it causes rapid diffusion of potassium ions. the Na+ ions have been pumped back into the cell. Synaptic vesicles. Not ready to purchase the revision kit yet? One is the vertebrate neuromuscular junction, and the other is the giant synapse of the squid Loligo. A nerve impulse occurs because of a difference in electrical charge across the plasma membrane of a neuron. analyzes sensory information, stores information, makes decisions. b) an excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold A second nerve impulse cannot be generated until ____, the membrane potential has been reestablished. The membrane of the presynaptic terminal contains voltage-dependent calcium channels that open when the membrane is depolarized by a nerve impulse, allowing Ca2+ to diffuse into the terminal along its concentration gradient. conduction states that the whole nerve cell must be stimulated for You can specify conditions of storing and accessing cookies in your browser, A second nerve impulse cannot be generated until ________. Temperature directly correlates with the transmission of nerve impulses. Almost instantly the membrane actually reverses polarity, and the inside acquires a positive charge in relation to the outside. Similarly, in the case of nerve impulse conduction, the neurons the stimulus must have a threshold value for causing the movement of ions across the length of axon (for conducting nerve impulse) by opening the voltage-gated ion channels. d) efferent neuron, What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? Direct diffusion of ions through these junctions allows the action potential to be transmitted with little or no delay or distortion, in effect synchronizing the response of an entire group of neurons. neurons is called a(n) ________.A) afferent neuron, In myelinated axons the voltage-regulated sodium channels are The action potential will move down the axon toward the synapse like a wave would move along the surface of the water. leakage gated channels The sodium-potassium pump is a mechanism of active transport that moves sodium ions out of cells and potassium ions into cells. association neuron. A In what way does the interior surface of a cell membrane of a resting a) Schwann cell the membrane potential has been reestablished. In this process the membranes are surrounded by a protein coat at the lateral margins of the synapse and are then transferred to cisternae, which form in the terminal during nerve stimulation. Saltatory conduction is made possible by ________. Which of the following describes the nervous system integrative function? intervals exert a cumulative effect. A second nerve impulse cannot be generated until _____. A second nerve impulse cannot be generated until ________. directly from one neuron to another. True or False, The nodes of Ranvier are found only on myelinated, peripheral neural processes. ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. Which of the following describes the excitatory postsynaptic potential? Join over 22,000 learners who have passed their exams thanks to us! The threshold stimulus must be strong enough to change the resting membrane potential into action membrane potential. Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. summationD) Threshold stimulus, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. This threshold potential varies but is generally about 15 millivolts (mV) more positive than the cell's resting membrane potential. An inhibitory postsynaptic potential (IPSP) is associated with ________. A) the membrane potential has been reestablished B) the Na ions have been pumped back into the cell C) proteins have been resynthesized D) all sodium gates are closed the membrane potential has been reestablished Immediately after an action potential has peaked, which cellular gates open? Involved in activating fibers of a skeletal muscle such as In conducting nerve impulse, the following play a major role: Axon plays a major role in the process by transmitting signals in the form of nerve impulses via synapses to the target cells. An action potential occurs when the nerve cell is in an excited state while conducting nerve impulses. Which of the following describes the nervous system integrative function? Neurophysiology Practice #2 - A second nerve impulse cannot be generated until ________. An action potential works on an all-or-nothing basis. A nerve impulse is produced when a stimulus acts on the nerve fibre, resulting in electrochemical changes across the nerve membrane. happen after a refractory period, when the membrane potential has The signal is transmitted in the form of ions and therefore it is much faster than chemical synapses. This quantal release of neurotransmitter has a critical influence on the electrical potential created in the postsynaptic membrane. negatively charged and contains less sodium. how many stomach compartments are in a ruminant animal? Select the correct statement regarding synapses. The sodium-potassium pump moves both ions from areas of lower to higher concentration, using energy in ATP and carrier proteins in the cell membrane. It is thus a mode of communication between different cells. This combined action of EPPs is called summation. A second nerve impulse cannot The term central nervous system refers to the ________. A) Subthreshold stimulusB) Temporal summationC) Spatial The place where an axon terminal meets another cell is called a synapse. They are generated when the nerve B) the impulse would spread bidirectionally. c) sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS cord and sensory ganglia of cranial nerves? Strong stimuli cause Due to this sheath, an action potential is not formed on the surface of the neuron. The term central nervous system refers to the ________. d) tracts, Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? Neurotransmitters are packed into small, membrane-bound synaptic vesicles. During the refractory period, another action potential cannot be generated. the inferior is ____ negatively charged and contains less sodium 30 When the action potential is over (after transmitting the nerve impulse through neuron) the cell membrane potential returns back by repolarizing the membrane. Neurons sense the changes in the environment and as a result, generate nerve impulses to prepare the body against those changes. In myelinated neurons, myelinated sheaths are present. What does the central nervous system use to determine the strength of An inhibitory postsynaptic potential (IPSP) is associated with ________. Also called a nerve impulse transmitted by ions Action Potential During this; an exceptionally strong stimulus can trigger a response Relative Refractory Period Numerous nerve impulses arriving at a synapse at closely time intervals exert a cumulative effect during this period Temporal Summation Axon Ending- Acts as a transmitter of signals. D) Cells with gap junctions use chemical synapses C. 11 the biceps muscle. D) erratic transmission of nerve impulses. 2.) the membrane Since ions cannot cross the lipid content of the myelin sheath, they spread passively down the nerve fibre until reaching the unmyelinated nodes of Ranvier. Neuralgia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are. The refractory phase is a brief period after the successful transmission of a nerve impulse. 2.) So, for conduction of nerve impulse there are two mechanisms: Continuous nerve impulse conduction occurs in non-myelinated axons. The frequencies of the alleles A and a are 0.60.60.6 and 0.40.40.4, respectively, in a particular plant population. the membrane potential has been reestablished. The sympathetic and parasympathetic are subdivisions of the ________. 38. response observed in the left graph? Which of the following correctly describes a graded potential? F(A,B,C,D)=BD+BCD+ABC+ABCD+BDF(A, B, C, D)=B D^{\prime}+B^{\prime} C D+A B C+A B C^{\prime} D+B^{\prime} D^{\prime}F(A,B,C,D)=BD+BCD+ABC+ABCD+BD (b) Find the minimum sum of products. zoneD) Secretory regionE) Trigger zone. Seeley's Essentials of Anatomy and Physiology, Andrew Russo, Cinnamon VanPutte, Jennifer Regan, EXAM 2 Q's and A's from other persons test, three half-lives Select the correct statement about serial processing. synaptic vesicles to the axonal membrane. As stated above, the action potential is propagated along the axon without any decrease in amplitude with distance. An A) Conducting regionB) Receptive regionC) Secretory Ion channel. (nonconducting) neuron differ from the external environment? This is because The part of a neuron that conducts impulses away from its cell body is called a(n) ________. It is a short duration of time during which a new nerve impulse cannot be generated in a neuron, after initiation of a previous action potential. C) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. Nerve Impulse is a major mode of signal transmission for the Nervous system. A second nerve impulse cannot be generated until ________. If the stimulus is more than the threshold value, then it will generate a nerve impulse that will travel across the entire length of the axon. c) a nerve impulse occurs if the excitatory and inhibitory effects are equal, a nerve impulse occurs if the excitatory and inhibitory effects are equal, A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. Neurons are a complex network of fibers that transmit information from the axon ending of one neuron to the dendrite of another neuron. frequency of action potentials The neuron cannot respond to a second stimulus, no matter how strong. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. When a neuron is not actively transmitting a nerve impulse, it is in a resting state, ready to transmit a nerve impulse. True or False, Unipolar neurons have axons structurally divided into peripheral and central processes. spinal cord? It is called the action potential because the positive charge then flows through the cytoplasm, activating sodium channels along the entire length of the nerve fibre. Legal. The nerve impulse travels at a speed of 100 m/s in saltatory conduction. C) found in ganglia membrane would produce an inhibitory postsynaptic potential (IPSP). Exactly which ions now permeate the membrane vary according to the neurotransmitters and their receptors (see the section Neurotransmitters and neuromodulators), but the net result of a change in ion diffusion is a change in electrical potential across the membrane. a) afforestation neuron The interior is Negatively charged and contains less sodium to another stimulus is the ________.A) depolarization, Strong stimuli cause the amplitude of action potentials generated to increase. C) motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. What does this flow of ions do to the relative charge inside the neuron compared to the outside. As a result of this, the membrane becomes hyperpolarized and have a potential difference of -90 mV. This is called repolarization of the membrane. Which of these ions is actively transported through the cell membrane to establish a resting potential? This series of activations, by propagating the action potential along the fibre with virtually no reduction in amplitude . other types of channels and can fire multiple action potentials to What type of chemicals are used in sanitation? D) Group C fibers are not capable of saltatory conduction. D) the membrane potential has been reestablished. True or False, During depolarization, the inside of the neuron's membrane becomes less negative. A) lowering the threshold for an action potential to occur. 4.) The nodes of Ranvier are packed with a high concentration of ion channels, which, upon stimulation, propagate the nerve impulse to the next node. As shown in Figure \(\PageIndex{5}\), the presynaptic area contains many tiny spherical vessels called synaptic vesicles that are packed with chemicals called neurotransmitters. postsynaptic neuron by many terminals at the same time.3.) c) nerves , 4. During the refractory period, another action potential cannot be generated. The part of the neuron that normally receives stimuli is called ________. Figure \(\PageIndex{4}\)shows the change in potential of the axon membrane during an action potential. That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. A) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. 33) A second nerve impulse cannot be generated until _____. Which of the following is true about the movement of ions across excitable living membranes? a) short distance depolarization Axon terminals release neurotransmitters. One mechanism, the sodium-potassium pump, maintains the resting potential, and another, the various ion channels, helps create the action potential. What does the central nervous system use to determine the strength of a stimulus? The In contrast to electrical transmission, which takes place with almost no delay, chemical transmission exhibits synaptic delay. Each vesicle contains thousands of neurotransmitter molecules, and there are thousands of vesicles in each axon terminal. In addition, only a single synapse is involved at these sites, whereas a single neuron of the central nervous system may have many synapses with many other neurons, each with a different neurotransmitter. Why was the decision Roe v. Wade important for feminists? ________ law is the relationship between voltage, current, and resistance. Figure \(\PageIndex{3}\)shows in greater detail how the sodium-potassium pump works. True or false: The all-or-none phenomenon as applied to nerve The stimulus can be a chemical, electrical, or mechanical signal. Nerve cell adhesion molecules (N-CAMs) ________. Which of the following is not a are crucial for the development of neural connections. It is a change in the resting state of the neuron. Saltatory conduction increases the speed at which a nerve signal is conducted down the length of an axon. voltage-gated channel Write a method in Java to extract the prefix of an address (as an integer) given a string representing a CIDR notation in the form x.y.z.t/n. First, the neurotransmitter molecules simply diffuse out of the narrow synaptic cleft. The resting membrane potential refers to the non-excited state of the nerve cell at rest when no nerve impulse is being conducted. This site is using cookies under cookie policy . Figure 11.4. Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? Due to the difference in the concentration of ions inside and outside the membrane, a potential gradient is established ranging between -20-200mV ( in the case of humans, the potential gradient in the polarized state is nearly -70mV).

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a second nerve impulse cannot be generated until

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First, diffusion of the neurotransmitter across the synaptic cleft takes approximately 0.05 millisecond. A neural circuit in which a single impulse is transmitted over and over is a ________. b) ions always move passively across membranes When a sensory neuron is excited by some form of nerdy, the resulting graded potential is called a(n) ____, If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon _____. Direct-acting neurotransmitters ________. A) the membrane potential has been reestablished B) the Na ions have been pumped back into the cell C) proteins have been resynthesized D) all sodium gates are closed. the same ultimate effect. In the polarized state, the axon membrane is more permeable to potassium ions instead of sodium ions and as a result, it causes rapid diffusion of potassium ions. the Na+ ions have been pumped back into the cell. Synaptic vesicles. Not ready to purchase the revision kit yet? One is the vertebrate neuromuscular junction, and the other is the giant synapse of the squid Loligo. A nerve impulse occurs because of a difference in electrical charge across the plasma membrane of a neuron. analyzes sensory information, stores information, makes decisions. b) an excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold A second nerve impulse cannot be generated until ____, the membrane potential has been reestablished. The membrane of the presynaptic terminal contains voltage-dependent calcium channels that open when the membrane is depolarized by a nerve impulse, allowing Ca2+ to diffuse into the terminal along its concentration gradient. conduction states that the whole nerve cell must be stimulated for You can specify conditions of storing and accessing cookies in your browser, A second nerve impulse cannot be generated until ________. Temperature directly correlates with the transmission of nerve impulses. Almost instantly the membrane actually reverses polarity, and the inside acquires a positive charge in relation to the outside. Similarly, in the case of nerve impulse conduction, the neurons the stimulus must have a threshold value for causing the movement of ions across the length of axon (for conducting nerve impulse) by opening the voltage-gated ion channels. d) efferent neuron, What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? Direct diffusion of ions through these junctions allows the action potential to be transmitted with little or no delay or distortion, in effect synchronizing the response of an entire group of neurons. neurons is called a(n) ________.A) afferent neuron, In myelinated axons the voltage-regulated sodium channels are The action potential will move down the axon toward the synapse like a wave would move along the surface of the water. leakage gated channels The sodium-potassium pump is a mechanism of active transport that moves sodium ions out of cells and potassium ions into cells. association neuron. A In what way does the interior surface of a cell membrane of a resting a) Schwann cell the membrane potential has been reestablished. In this process the membranes are surrounded by a protein coat at the lateral margins of the synapse and are then transferred to cisternae, which form in the terminal during nerve stimulation. Saltatory conduction is made possible by ________. Which of the following describes the nervous system integrative function? intervals exert a cumulative effect. A second nerve impulse cannot be generated until _____. A second nerve impulse cannot be generated until ________. directly from one neuron to another. True or False, The nodes of Ranvier are found only on myelinated, peripheral neural processes. ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. Which of the following describes the excitatory postsynaptic potential? Join over 22,000 learners who have passed their exams thanks to us! The threshold stimulus must be strong enough to change the resting membrane potential into action membrane potential. Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. summationD) Threshold stimulus, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. This threshold potential varies but is generally about 15 millivolts (mV) more positive than the cell's resting membrane potential. An inhibitory postsynaptic potential (IPSP) is associated with ________. A) the membrane potential has been reestablished B) the Na ions have been pumped back into the cell C) proteins have been resynthesized D) all sodium gates are closed the membrane potential has been reestablished Immediately after an action potential has peaked, which cellular gates open? Involved in activating fibers of a skeletal muscle such as In conducting nerve impulse, the following play a major role: Axon plays a major role in the process by transmitting signals in the form of nerve impulses via synapses to the target cells. An action potential occurs when the nerve cell is in an excited state while conducting nerve impulses. Which of the following describes the nervous system integrative function? Neurophysiology Practice #2 - A second nerve impulse cannot be generated until ________. An action potential works on an all-or-nothing basis. A nerve impulse is produced when a stimulus acts on the nerve fibre, resulting in electrochemical changes across the nerve membrane. happen after a refractory period, when the membrane potential has The signal is transmitted in the form of ions and therefore it is much faster than chemical synapses. This quantal release of neurotransmitter has a critical influence on the electrical potential created in the postsynaptic membrane. negatively charged and contains less sodium. how many stomach compartments are in a ruminant animal? Select the correct statement regarding synapses. The sodium-potassium pump moves both ions from areas of lower to higher concentration, using energy in ATP and carrier proteins in the cell membrane. It is thus a mode of communication between different cells. This combined action of EPPs is called summation. A second nerve impulse cannot The term central nervous system refers to the ________. A) Subthreshold stimulusB) Temporal summationC) Spatial The place where an axon terminal meets another cell is called a synapse. They are generated when the nerve B) the impulse would spread bidirectionally. c) sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS cord and sensory ganglia of cranial nerves? Strong stimuli cause Due to this sheath, an action potential is not formed on the surface of the neuron. The term central nervous system refers to the ________. d) tracts, Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? Neurotransmitters are packed into small, membrane-bound synaptic vesicles. During the refractory period, another action potential cannot be generated. the inferior is ____ negatively charged and contains less sodium 30 When the action potential is over (after transmitting the nerve impulse through neuron) the cell membrane potential returns back by repolarizing the membrane. Neurons sense the changes in the environment and as a result, generate nerve impulses to prepare the body against those changes. In myelinated neurons, myelinated sheaths are present. What does the central nervous system use to determine the strength of An inhibitory postsynaptic potential (IPSP) is associated with ________. Also called a nerve impulse transmitted by ions Action Potential During this; an exceptionally strong stimulus can trigger a response Relative Refractory Period Numerous nerve impulses arriving at a synapse at closely time intervals exert a cumulative effect during this period Temporal Summation Axon Ending- Acts as a transmitter of signals. D) Cells with gap junctions use chemical synapses C. 11 the biceps muscle. D) erratic transmission of nerve impulses. 2.) the membrane Since ions cannot cross the lipid content of the myelin sheath, they spread passively down the nerve fibre until reaching the unmyelinated nodes of Ranvier. Neuralgia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are. The refractory phase is a brief period after the successful transmission of a nerve impulse. 2.) So, for conduction of nerve impulse there are two mechanisms: Continuous nerve impulse conduction occurs in non-myelinated axons. The frequencies of the alleles A and a are 0.60.60.6 and 0.40.40.4, respectively, in a particular plant population. the membrane potential has been reestablished. The sympathetic and parasympathetic are subdivisions of the ________. 38. response observed in the left graph? Which of the following correctly describes a graded potential? F(A,B,C,D)=BD+BCD+ABC+ABCD+BDF(A, B, C, D)=B D^{\prime}+B^{\prime} C D+A B C+A B C^{\prime} D+B^{\prime} D^{\prime}F(A,B,C,D)=BD+BCD+ABC+ABCD+BD (b) Find the minimum sum of products. zoneD) Secretory regionE) Trigger zone. Seeley's Essentials of Anatomy and Physiology, Andrew Russo, Cinnamon VanPutte, Jennifer Regan, EXAM 2 Q's and A's from other persons test, three half-lives Select the correct statement about serial processing. synaptic vesicles to the axonal membrane. As stated above, the action potential is propagated along the axon without any decrease in amplitude with distance. An A) Conducting regionB) Receptive regionC) Secretory Ion channel. (nonconducting) neuron differ from the external environment? This is because The part of a neuron that conducts impulses away from its cell body is called a(n) ________. It is a short duration of time during which a new nerve impulse cannot be generated in a neuron, after initiation of a previous action potential. C) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. Nerve Impulse is a major mode of signal transmission for the Nervous system. A second nerve impulse cannot be generated until ________. If the stimulus is more than the threshold value, then it will generate a nerve impulse that will travel across the entire length of the axon. c) a nerve impulse occurs if the excitatory and inhibitory effects are equal, a nerve impulse occurs if the excitatory and inhibitory effects are equal, A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. Neurons are a complex network of fibers that transmit information from the axon ending of one neuron to the dendrite of another neuron. frequency of action potentials The neuron cannot respond to a second stimulus, no matter how strong. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. When a neuron is not actively transmitting a nerve impulse, it is in a resting state, ready to transmit a nerve impulse. True or False, Unipolar neurons have axons structurally divided into peripheral and central processes. spinal cord? It is called the action potential because the positive charge then flows through the cytoplasm, activating sodium channels along the entire length of the nerve fibre. Legal. The nerve impulse travels at a speed of 100 m/s in saltatory conduction. C) found in ganglia membrane would produce an inhibitory postsynaptic potential (IPSP). Exactly which ions now permeate the membrane vary according to the neurotransmitters and their receptors (see the section Neurotransmitters and neuromodulators), but the net result of a change in ion diffusion is a change in electrical potential across the membrane. a) afforestation neuron The interior is Negatively charged and contains less sodium to another stimulus is the ________.A) depolarization, Strong stimuli cause the amplitude of action potentials generated to increase. C) motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. What does this flow of ions do to the relative charge inside the neuron compared to the outside. As a result of this, the membrane becomes hyperpolarized and have a potential difference of -90 mV. This is called repolarization of the membrane. Which of these ions is actively transported through the cell membrane to establish a resting potential? This series of activations, by propagating the action potential along the fibre with virtually no reduction in amplitude . other types of channels and can fire multiple action potentials to What type of chemicals are used in sanitation? D) Group C fibers are not capable of saltatory conduction. D) the membrane potential has been reestablished. True or False, During depolarization, the inside of the neuron's membrane becomes less negative. A) lowering the threshold for an action potential to occur. 4.) The nodes of Ranvier are packed with a high concentration of ion channels, which, upon stimulation, propagate the nerve impulse to the next node. As shown in Figure \(\PageIndex{5}\), the presynaptic area contains many tiny spherical vessels called synaptic vesicles that are packed with chemicals called neurotransmitters. postsynaptic neuron by many terminals at the same time.3.) c) nerves , 4. During the refractory period, another action potential cannot be generated. The part of the neuron that normally receives stimuli is called ________. Figure \(\PageIndex{4}\)shows the change in potential of the axon membrane during an action potential. That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. A) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. 33) A second nerve impulse cannot be generated until _____. Which of the following is true about the movement of ions across excitable living membranes? a) short distance depolarization Axon terminals release neurotransmitters. One mechanism, the sodium-potassium pump, maintains the resting potential, and another, the various ion channels, helps create the action potential. What does the central nervous system use to determine the strength of a stimulus? The In contrast to electrical transmission, which takes place with almost no delay, chemical transmission exhibits synaptic delay. Each vesicle contains thousands of neurotransmitter molecules, and there are thousands of vesicles in each axon terminal. In addition, only a single synapse is involved at these sites, whereas a single neuron of the central nervous system may have many synapses with many other neurons, each with a different neurotransmitter. Why was the decision Roe v. Wade important for feminists? ________ law is the relationship between voltage, current, and resistance. Figure \(\PageIndex{3}\)shows in greater detail how the sodium-potassium pump works. True or false: The all-or-none phenomenon as applied to nerve The stimulus can be a chemical, electrical, or mechanical signal. Nerve cell adhesion molecules (N-CAMs) ________. Which of the following is not a are crucial for the development of neural connections. It is a change in the resting state of the neuron. Saltatory conduction increases the speed at which a nerve signal is conducted down the length of an axon. voltage-gated channel Write a method in Java to extract the prefix of an address (as an integer) given a string representing a CIDR notation in the form x.y.z.t/n. First, the neurotransmitter molecules simply diffuse out of the narrow synaptic cleft. The resting membrane potential refers to the non-excited state of the nerve cell at rest when no nerve impulse is being conducted. This site is using cookies under cookie policy . Figure 11.4. Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? Due to the difference in the concentration of ions inside and outside the membrane, a potential gradient is established ranging between -20-200mV ( in the case of humans, the potential gradient in the polarized state is nearly -70mV). 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