FUND. OF ANATOMY & PHYSIOLOGY F16 PKG
10th Edition
ISBN: 9781323431122
Author: Martini
Publisher: PEARSON C
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Question
Chapter 12, Problem 13CP
Summary Introduction
To determine:
The effect of a chemical that blocks the voltage gated ion channels in the plasma membrane of a neuron on its ability to depolarize.
Introduction:
The voltage gated ion channels are those ion channels that open in response to changes in voltage across the plasma membrane. They play an important role in transmission of nerve impulse.
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Chapter 12 Solutions
FUND. OF ANATOMY & PHYSIOLOGY F16 PKG
Ch. 12 - Prob. 1CPCh. 12 - Describe the two functional divisions of the...Ch. 12 - 3. Identify the two components of the efferent...Ch. 12 - Prob. 4CPCh. 12 - Name the structural components of a typical...Ch. 12 - Classify neurons according to their structure.Ch. 12 - Classify neurons according to their function.Ch. 12 - Prob. 8CPCh. 12 - Prob. 9CPCh. 12 - Prob. 10CP
Ch. 12 - Prob. 11CPCh. 12 - Prob. 12CPCh. 12 - Prob. 13CPCh. 12 - What effect would decreasing the concentration of...Ch. 12 - Define action potential.Ch. 12 - Identify the steps involved in the generation and...Ch. 12 - Prob. 17CPCh. 12 - Which of the following axons is myelinated: one...Ch. 12 - Prob. 19CPCh. 12 - Prob. 20CPCh. 12 - What effect would blocking voltage-gated calcium...Ch. 12 - Prob. 22CPCh. 12 - Prob. 23CPCh. 12 - Prob. 24CPCh. 12 - Prob. 25CPCh. 12 - Prob. 26CPCh. 12 - Prob. 27CPCh. 12 - LEVEL 1 Reviewing Facts and Terms 1. Label the...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - The neural cells responsible for the analysis of...Ch. 12 - Depolarization of a neuron plasma membrane will...Ch. 12 - Prob. 7RQCh. 12 - Receptors that bind acetylcholine at the...Ch. 12 - What are the major components of (a) the central...Ch. 12 - Prob. 10RQCh. 12 - Prob. 11RQCh. 12 - If the resting membrane potential of a neuron is...Ch. 12 - Prob. 13RQCh. 12 - What is the difference between anterograde flow...Ch. 12 - What is the functional difference among chemically...Ch. 12 - State the all-or-none principle cf action...Ch. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - What are the structural and functional differences...Ch. 12 - Describe the events that occur during nerve...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - In multiple sclerosis, there is intermittent and...Ch. 12 - Prob. 25RQCh. 12 - Prob. 1CCCh. 12 - Prob. 2CC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Conformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)arrow_forwardWhat happens to Na+ when a neuron is stimulated on its dendrite? Why does the movement of Na+ raise the voltage on the plasma membrane?arrow_forwardA person is given a drug that blocks the voltage-gated sodium ion channels in the plasma membrane of a neuron. Write: What effect would this have on the ability of the neuron to depolarize?arrow_forward
- What effect would a chemical that blocks the voltagegated sodium ion channels in the excitable axon membrane of a neuron have on its ability to depolarize?arrow_forwardWhat properties of ion channels allow them to generate the large, rapid changes in membrane potential?arrow_forwardWhat is the difference between the membrane potential in a normal cell and an excitable cell?arrow_forward
- Match each type of membrane potential (resting, threshold, graded, or action) to its definition: a) The membrane potential at which voltage gated sodium channels open. b) The membrane potential that triggers the action potential. c) Change in membrane potential that may or may not reach threshold and that may be depolarizing or hyperpolarizing. d) Rapid, strong depolarization followed by immediate repolarization. This potential is self-renewing if the right ion channels are nearby.arrow_forwardSuppose that in a certain neuron, negatively charged protein molecules found in the intracellular compartment were suddenly able to diffuse through the cell membrane freely. What would be the result on this cell's resting membrane potential and action potential threshold? A) The resting potential would hyperpolarize and the action potential threshold would not change. B) The resting potential would depolarize and the action potential threshold would decrease. C) The resting potential would depolarize and the action potential threshold would not change. D) The resting potential would hyperpolarize and the action potential threshold would increase.arrow_forwardWhich statement is true regarding the action potential process? 1) the repolarization phase must occur prior to depolarization 2) hyperpolarization allows for Na+ and K+ ions to move into and out of the cell 3) the action potential process only occurs at the nodes of ranvier in myelinated axons 4) depolarization occurs because voltage gated K+ channels allow K+ ions to rush into the cellarrow_forward
- What is the expected resting membrane potential (in mV) of a neuron that is typical in all ways except for possessing an intracellular potassium concentration of 94 mM and double the normal resting permeability to sodium?arrow_forwardWhat causes depolarization of a neuron membrane potential?arrow_forwardWhat is the role of ions, the phospholipid bilayer, and plasma membrane channels in neurons relative to the concepts of current, voltage, and resistance?arrow_forward
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