Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
10th Edition
ISBN: 9780321908599
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Chapter 13, Problem 10RQ
Summary Introduction
Introduction:
The synapsing of several neurons means spreading the information from several synapses. The millions of sensory and motor neurons gets the information from synapsing.
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The loss of positive ions from the interior of a neuron produces, (a) depolarization. (b) threshold. (c) hyperpolarization. (d) an action potential.
Saltatory conduction is a term applied to the "jumping" movement of action potentials
Multiple Choice
a) along the postsynaptic membrane from dendrite to axon hillock.
b) along myelinated axons.
c) from one neuron to another.
d) in two directions at the same time.
e) across electrical synapses.
Afferent neurons of the PNS synapse in the CNS with (a) axons in the white matter, (b) neuron cell bodies in the gray matter, (c) neuron cell bodies in the white matter, (d) axons in the gray matter.
Chapter 13 Solutions
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Ch. 13 - Name the structures of the central nervous system...Ch. 13 - Define spinal reflex.Ch. 13 - Identify the three spinal meninges.Ch. 13 - Prob. 4CPCh. 13 - Prob. 5CPCh. 13 - Differentiate between sensory nuclei and motor...Ch. 13 - Prob. 7CPCh. 13 - Prob. 8CPCh. 13 - Prob. 9CPCh. 13 - Prob. 10CP
Ch. 13 - Injury to which of the nerve plexuses would...Ch. 13 - Compression of which nerve produces the sensation...Ch. 13 - Prob. 13CPCh. 13 - Prob. 14CPCh. 13 - Prob. 15CPCh. 13 - Prob. 16CPCh. 13 - Prob. 17CPCh. 13 - Prob. 18CPCh. 13 - Prob. 19CPCh. 13 - Prob. 20CPCh. 13 - Prob. 21CPCh. 13 - Prob. 22CPCh. 13 - Prob. 23CPCh. 13 - LEVEL 1 Reviewing Facts and Terms 1. Label the...Ch. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - The reflexes that control the most rapid,...Ch. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Proceeding deep from the most superficial...Ch. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - Polysynaptic reflexes can produce far more...Ch. 13 - Prob. 19RQCh. 13 - Prob. 20RQCh. 13 - Prob. 21RQCh. 13 - Prob. 22RQCh. 13 - Prob. 23RQCh. 13 - Prob. 24RQCh. 13 - Prob. 25RQCh. 13 - Prob. 26RQCh. 13 - Prob. 27RQCh. 13 - Prob. 28RQCh. 13 - The improper use of crutches can produce a...Ch. 13 - Prob. 30RQCh. 13 - Karen falls down a flight of stairs and suffers...Ch. 13 - Will Joe regain motor or sensory activity in his...Ch. 13 - Prob. 2CC
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- Compare the following:(a) Central neural system (CNS) and Peripheral neural system (PNS)(b) Resting potential and action potential(c) Choroid and retinaarrow_forward(a) Explain the difference between an EPSP and an IPSP. (b) What specifically determines whether an EPSP or IPSP will be generated at the postsynaptic membrane?arrow_forwardWhich statement is true regarding the neuron synapse? B) binging of a neurotransmitter on the postsynaptic neuron membrane can generate an action potential in that neuron C) the binding of a neurotransmitter always causes an excitatory effect on that cell, never inhibitory D) the presynaptic and pastsynaptic neuron membranes are not physically separatedarrow_forward
- Both electrical and chemical synapses trigger passage of ions across the post-synaptic membrane. (i) Which one of these synapses also allows passage of molecules other than ions across the post-synaptic membrane? (ii) What purpose does an electrical synapse serve? A. Electrical synapse; (ii) dissociate neuronal firing among a group of neurons B. Chemical synapse, (ii) to synthesize IP3 C. (i) Chemical synapse, (ii) slow neurotransmission D. Chemical synapse, (ii) silence neuronal firing O E. (i) Electrical synapse, (ii) fast neurotransmission for synchronized firingarrow_forward48) which of the following occurs when acetylcholine is released from somatic nervous system? a) sometimes an EPSP, sometimes and IPSP b) skeletal muscle relaxation c) EPSP every time d) IPSP every timearrow_forwardThe opening of potassium (K+) channels on dendrites of a postsynaptic neuron will have what effect? A) Depolarization B) EPSP C) Hyperpolarization D) IPSP E) Both A and B are correct F) Both C and D are correctarrow_forward
- The myelin sheath is produced around axons in the PNS by (a) ganglia (b) neuron cell bodies (c) dendrites (d) Schwann cells (e) oligodendrocytesarrow_forwardDuring the refractory period a) if a neuron reaches threshold the action potential goes to completion b) No stimulus of any strength will trigger a new action potential c) It is possible to trigger a new action potential but only with an unusually strong stimulus d) The signal grows weaker with distance e) The neuron fires at its maximum voltage if a stimulus depolarizes the neuron to thresholdarrow_forwardA monosynaptic reflex is an example of (a) a convergent circuit, (b) parallel processing, (c) serial processing, (d) a reverberating circuit.arrow_forward
- How is the choice of neurochemical to be released at a synapse determined? A) We don't have enough information to draw conclusions about how this process occurs. B) The postsynaptic structure signals its "choice" to the presynaptic structure. C) The presynaptic structure begins to release its neurochemical onto postsynaptic structures, which adapt by producing the appropriate receptors. D) The "choice" is determined by the genes of both the pre- and postsynaptic cells.arrow_forwardWhich of the following is the most direct result of depolarizingthe presynaptic membrane of an axon terminal?(A) Voltage-gated calcium channels in the membrane open.(B) Synaptic vesicles fuse with the membrane.(C) Ligand-gated channels open, allowing neurotransmittersto enter the synaptic cleft.(D) An EPSP or IPSP is generated in the postsynaptic cell.arrow_forwardIf you increase the amount of neurotransmitter in the synaptic cleft, how would you expect the post-synaptic potential (PSP) to change? a) The PSP would be stronger b) The PSP would change from depolarizing to hyperpolarizing c) The PSP would not changearrow_forward
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