Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 11, Problem 23RQ
Summary Introduction
To review:
The biological terminologies, “ Group A and group B fibers,” “absolute refractory period,” “myelin sheath gaps” used by a professor in a neurobiology lecture.
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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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- Classify the following images into the types of neural circuits they represent. Diverging Reset Converging Parallel after-discharge Reverberatingarrow_forwardCorrectly label the following parts of a myelinated axon. Oligodendrocyte Neurilemma Reset Zoom Schwann cell Basal lamina Nucleus Dendrite Endoneurium Neurosoma Axon Myelin sheatharrow_forwardSynapses through interconnected neurons are known to be a junction that mediates information transfer from one neuron to the other neurons. Enumerate and describe the classifications of synapses based on what you can research on online. Kindly include your reference.arrow_forward
- Temporal summation refers to: summation of action potentials in the temporal cortex. summation of postsynaptic potentials on a neuron occurring closely together in time. summation of postsynaptic potentials at different places on a neuron at the same time. summation of postsynaptic potentials in the temporal cortex.arrow_forwardIn neurology, please explain the relationship between extraceullalar calcium concentration and post synaptic potential. does higher extra cellular calcium concentration means bigger change in postsynaptic potential and lower extra cellular calcium concentration means smaller change in postsynaptic potential? Please explain in a few sentences.arrow_forwardExplain how myelination of the axon results in saltatory conduction, and how this increases the speed at which the action potential travels For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph |=、三、 Arial 10pt A varrow_forward
- please use arrows to idetify: axon fascicle endoneurium perineurium epineurium Schwann cell (myelin sheath) Nucleus of Schwann cellarrow_forwardMultiple sclerosis (MS) is a condition in which neurons in the CNS become demyelinated. Why do you think a NCV (nerve conduction velocity) test is not useful in diagnosing MS?arrow_forwardShort-term memory, like remembering a phone number, is stored as a Long Term Potentiation (LTP) of the synapse. Describe what has changed at the synapse when it has undergone LTP.arrow_forward
- Compare (consider both similarities and differences), contrast, and give the physiological significance of the following pairs of terms: electrical and chemical synapses absolute refractory period vs. relative refractory periodarrow_forwardA neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forwardAssume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and presynaptic excitatory neuron B terminates on the same postsynaptic cell on a dendrite located on the side of the cell body opposite the axon hillock. Explain why rapid firing of presynaptic neuron A could bring the postsynaptic neuron to threshold through temporal summation, thus initiating an action potential, whereas firing of presynaptic neuron B at the same frequency and the same magnitude of EPSPs may not bring the postsynaptic neuron to threshold.arrow_forward
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