EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Textbook Question
Chapter 8, Problem 8RQ
Match the numbers of the appropriate characteristics with the two types of potentials. Characteristics may apply to one or both types.
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Chapter 8 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 8 - Organize the following terms describing functional...Ch. 8 - Where do neurohormone-secreting neurons terminate?Ch. 8 - What is the difference between a nerve and a...Ch. 8 - Draw a chain of three neurons that synapse on one...Ch. 8 - What is the primary function of each of the...Ch. 8 - Name the two glial cell types that form myelin....Ch. 8 - Given the values in Table 8.2, use the Nernst...Ch. 8 - Would a cell with a resting membrane potential of...Ch. 8 - Would the cell membrane depolarize or...Ch. 8 - Match each ions movement with the type of graded...
Ch. 8 - Prob. 11CCCh. 8 - What is the difference between conductance and...Ch. 8 - If you put ouabain, an inhibitor of the Na+-K+...Ch. 8 - The pyrethrin insecticides, derived from...Ch. 8 - When Na+ channel gates are resetting, is the...Ch. 8 - A stimulating electrode placed halfway down an...Ch. 8 - Place the following neurons in order of their...Ch. 8 - Prob. 18CCCh. 8 - Prob. 19CCCh. 8 - Prob. 20CCCh. 8 - Prob. 21CCCh. 8 - Prob. 22CCCh. 8 - Classify the H+-neurotransmitter exchange as...Ch. 8 - Prob. 24CCCh. 8 - Prob. 25CCCh. 8 - Is Na+-dependent neurotransmitter reuptake...Ch. 8 - In Figure 8.24e, assume the postsynaptic neuron...Ch. 8 - In the graphs of Figure 8.24a, b, why doesnt the...Ch. 8 - Prob. 29CCCh. 8 - Prob. 30CCCh. 8 - List the three functional classes of neurons, and...Ch. 8 - Somatic motor neurons control __________, and...Ch. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Axonal transport refers to the (a) release of...Ch. 8 - Match the numbers of the appropriate...Ch. 8 - Arrange the following events in the proper...Ch. 8 - List the four major types of ion channels found in...Ch. 8 - Prob. 11RQCh. 8 - An action potential is (circle all correct...Ch. 8 - Choose from the following ions to fill in the...Ch. 8 - What is the myelin sheath?Ch. 8 - List two factors that enhance conduction speed.Ch. 8 - Prob. 16RQCh. 8 - Draw and label a graph of an action potential....Ch. 8 - Prob. 18RQCh. 8 - Prob. 19RQCh. 8 - Create a map showing the organization of the...Ch. 8 - Prob. 21RQCh. 8 - Prob. 22RQCh. 8 - Prob. 23RQCh. 8 - Prob. 24RQCh. 8 - The presence of myelin allows an axon to (choose...Ch. 8 - Define, compare, and contrast the following...Ch. 8 - Prob. 27RQCh. 8 - Prob. 28RQCh. 8 - Prob. 29RQCh. 8 - Prob. 30RQCh. 8 - An unmyelinated axon has a much greater...Ch. 8 - The GHK equation is sometimes abbreviated to...Ch. 8 - In each of the following scenarios, will an action...
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- Which of the following characteristics of a graded potential explains the reason graded potentials only travel short distances? Strength is variable They can sum They are decremental They can result in hyperpolarizationarrow_forwardBased on the graph, the threshold voltage appears to be approximately. (Base your answer to this question on the graph below depicting an action potential.) +60 mV. +30 mV. 0 mV. −30 mV. −60 mV.arrow_forwardThe rising phase of the action potential is the direct result of the: O inflow of potassium O inflow of sodium O inflow of sodium and potassium O outflow of sodium O outflow of sodium and potassiumarrow_forward
- What property is responsible for the initial ramp of the membrane potential at the onset of the current pulse?A: Membrane capacitanceB: Membrane resistance explain your choicearrow_forwardAt the peak of the neuronal action potential, Vm is approximately +50 mV. Assuming normal intracellular and extracellular K+ concentrations ( [K+]o = 4 mM, [K+]i = 150 mM ), what is the driving force (in mV) that acts on K+ ions at the peak of the action potential?arrow_forwardState the all-or-none law of the action potential.arrow_forward
- a) Explain in detail what is occurring at stage A in the graph. (Be specific in terms of what's happening to the ion channels in your explanation if necessary!) b) What does this graph represent as a whole? Explain the main idea it portrays. +40| -70- A 1 2 4 Time/ms Potential Difference/mV Barrow_forwardAn increase in the magnitude of depolarization by a graded potential will increase the threshold potential increase the duration of an action potential increase the frequency of action potentials two of the abovearrow_forwardWhat is the threshold potential?arrow_forward
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