Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 11, Problem 16RQ
(a) Contrast unipolar, bipolar, and multipolar neurons structurally. (b) Indicate where each is most likely to be found.
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(a) Contrast unipolar, bipolar, and multipolar neurons structurally. (b) Indicate where each is most likely to be found.
The loss of positive ions from the interior of a neuron produces, (a) depolarization. (b) threshold. (c) hyperpolarization. (d) an action potential.
Identify and describe the four functional neuron segments, including the distribution of channels and pumps in each.
Chapter 11 Solutions
Anatomy & Physiology
Ch. 11 - What is meant by integration, and does it...Ch. 11 - Which subdivision of the PNS is involved in (a)...Ch. 11 - Which type of neuroglia controls the extracellular...Ch. 11 - Which two types of neuroglia form insulating...Ch. 11 - MAKING CONNECTIONS Which part of the neuron is its...Ch. 11 - How does a nucleus within the brain differ from a...Ch. 11 - How is a myelin sheath formed in the CNS, and what...Ch. 11 - Which structural and functional type of neuron is...Ch. 11 - For an open channel, what factors determine in...Ch. 11 - For which cation is there the greatest amount of...
Ch. 11 - Which is bigger, a graded potential or an action...Ch. 11 - An action potential does not get smaller as it...Ch. 11 - Why does a myelinated axon conduct action...Ch. 11 - If an axon receives two stimuli close together in...Ch. 11 - What structure joins two neurons at an electrical...Ch. 11 - Events at a chemical synapse usually involve...Ch. 11 - Which ions flow through chemically gated channels...Ch. 11 - Prob. 18CYUCh. 11 - Prob. 19CYUCh. 11 - Why is cyclic AMP called a second messenger?Ch. 11 - Which types of neural circuits would give a...Ch. 11 - Prob. 22CYUCh. 11 - What pattern of neural processing occurs when we...Ch. 11 - Which of the following structures is not part of...Ch. 11 - Match the names of the supporting cells found in...Ch. 11 - Prob. 3RQCh. 11 - Assume that an EPSP is being generated on the...Ch. 11 - The velocity of nerve impulse conduction is...Ch. 11 - Chemical synapses are characterized by all of the...Ch. 11 - Biogenic amine neurotransmitters include all but...Ch. 11 - Prob. 8RQCh. 11 - Inhibition of acetylcholinesterase by poisoning...Ch. 11 - Prob. 10RQCh. 11 - An IPSP is inhibitory because (a) it...Ch. 11 - Identify the neuronal circuits described by...Ch. 11 - Explain both the anatomical and functional...Ch. 11 - (a) Describe the composition and function of the...Ch. 11 - (a) What is myelin? (b) How does the myelination...Ch. 11 - (a) Contrast unipolar, bipolar, and multipolar...Ch. 11 - What is the polarized membrane state? How is it...Ch. 11 - Describe the events that must occur to generate an...Ch. 11 - Prob. 19RQCh. 11 - (a) Explain the difference between an EPSP and an...Ch. 11 - Since at any moment a neuron is likely to have...Ch. 11 - The effects of neurotransmitter binding are very...Ch. 11 - Prob. 23RQCh. 11 - Prob. 24RQCh. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...
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- a) How does E allow faster transmission of signals? b) What would happen if G has a lack of Calcium? c) Most neurons have the style of junction (chemical) shown in the diagram, rather than gap (electrical) junctions. Why does this make sense?arrow_forwardA synapse between a terminal bouton and a neuron cell body is classified as (a) axodendritic, (b) axoaxonic, (c) axosomatic, (d) axoneuronic.arrow_forwardDescribe the structures and functions of multipolar, bipolar and unipolar neurons.arrow_forward
- Describe three structures found in neurons that are also in other cell types, and describe two structures that are unique to neurons.arrow_forwardDefine three functional classes into which all neurons fall?arrow_forwardA common feature of action potentials is that they(A) cause the membrane to hyperpolarize and then depolarize.(B) can undergo temporal and spatial summation.(C) are triggered by a depolarization that reaches threshold.(D) move at the same speed along all axons.arrow_forward
- Distinguish among multipolar, bipolar, and unipolar neurons.arrow_forward(a) Describe the similarities and differences between neurons and typical cells.arrow_forwardLabel the structures in the following diagram of a neuron. (a) ______________ (b) ______________(c) ______________ (d) ______________(e) ______________ (f) ___________(g) ______________arrow_forward
- Describe five distinguishing features common to all neurons.arrow_forwardName this type of neuron.arrow_forwardWhat happens when a resting neuron’s membranedepolarizes?(A) There is a net diffusion of Na+out of the cell.(B) The equilibrium potential for K+(EK) becomesmore positive.(C) The neuron’s membrane voltage becomesmore positive.(D) The cell’s inside is more negative than the outsidearrow_forward
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