Modified Mastering A&P with Pearson eText -- Standalone Access Card -- for Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134388083
Author: Marieb
Publisher: PEARSON
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Chapter 11, Problem 15SAQ
(a) What is myelin? (b) How does the myelination process differ in the CNS and PNS?
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Compare and contrast the neuroglial cells that form the myelin sheaths in both the CNS and the PNS?
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Chapter 11 Solutions
Modified Mastering A&P with Pearson eText -- Standalone Access Card -- for Anatomy & Physiology (6th Edition)
Ch. 11.1 - What is meant by integration, and does it...Ch. 11.1 - Which subdivision of the PNS is involved in (a)...Ch. 11.2 - Which type of neuroglia controls the extracellular...Ch. 11.2 - Which two types of neuroglia form insulating...Ch. 11.3 - How does a nucleus within the brain differ from a...Ch. 11.3 - How is a myelin sheath formed in the CNS, and what...Ch. 11.3 - Which structural and functional type of neuron is...Ch. 11.3 - MAKING CONNECTIONS Which part of the neuron is its...Ch. 11.4 - For an open channel, what factors determine in...Ch. 11.4 - Prob. 10CYU
Ch. 11.5 - What determines the size of a graded potential?Ch. 11.6 - Which is bigger, a graded potential or an action...Ch. 11.6 - An action potential does not get smaller as it...Ch. 11.6 - Why does a myelinated axon conduct action...Ch. 11.6 - If an axon receives two stimuli close together in...Ch. 11.7 - Events at a chemical synapse usually involve...Ch. 11.7 - What structure joins two neurons at an electrical...Ch. 11.8 - Which ions flow through chemically gated channels...Ch. 11.8 - Prob. 19CYUCh. 11.9 - Prob. 20CYUCh. 11.9 - Why is cyclic AMP called a second messenger?Ch. 11.10 - Which types of neural circuits would give a...Ch. 11.10 - Prob. 23CYUCh. 11.10 - 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 - Assume that an EPSP is being generated on the...Ch. 11 - Prob. 3MCCh. 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. 8MCCh. 11 - Inhibition of acetylcholinesterase by poisoning...Ch. 11 - The anatomical region of a multipolar neuron where...Ch. 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. 19SAQCh. 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. 23SAQCh. 11 - Prob. 24SAQCh. 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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- How does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?arrow_forwardWhat two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b. proteins and nucleic acids c. lipids and proteins d. carbohydrates and nucleic acidsarrow_forwardWhat is the function of myelin sheaths? Where are they found?arrow_forward
- Are axons more likely to regrow in the peripheral nervous system or the central nervous system? Why?arrow_forwardIf a neuron starts in the anterior gray matter horn of the spinal cord and leaves and reaches the leg muscle, is that neuron in the CNS, PNS or both?arrow_forwardWhat is the difference in appearance and function between dendrites and axons??arrow_forward
- a) what letter represents dorsal white column b) what letter represents structure that carrys motor impulses from CNS to skeletal muscles? c) What letter represents structure that houses cell bodies of general somatic afferent neurons?arrow_forwardWhat are the functions of these neuron structures: dendrites, axon, synaptic vesicles, and neurofibrils?arrow_forwardHow is a neuron prevented from firing potentials continuously?arrow_forward
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