Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 12, Problem 7RQ
Summary Introduction
Introduction:
Action potentials are the
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Our nerve impulse travels from one neuron to the next in the form of.
a. chemical signal
b. electrical signal
c. electromagnetic signal
d. pressure signal
At rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron sends a signal, it opens sodium channels. What happens to the sodium when the sodium channels open?
A.
The sodium diffuses out of the cell.
B.
The sodium is pumped into the cell.
C.
The sodium is pumped out of the cell.
D.
The sodium diffuses into the cell.
Which direction does the sodium–potassium pump move ions?A. It moves both sodium and potassium ions into the cell.B. It moves both sodium and potassium ions out of the cell.C. It moves sodium ions into the cell and potassium ions out of the cell.D. It moves sodium ions out of the cell and potassium ions into the cell.
Chapter 12 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 12 - 1. Which of the following is the rapid upstroke in...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - Which of the following slows the heart rate and AV...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - Which of the following means the ability to...Ch. 12 - An electrical difference across the fibers of the...Ch. 12 - Prob. 10RQ
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