Multiple Choice
The nerve impulse moves along the neuron because
A) a current flows along the cell.
B) sodium ions flow from one end of the cell to the other.
C) there is a high concentration of sodium ions at one end of the cell and a high concentration of potassium ions at the other end of the cell.
D) depolarization of one portion of the nerve cell membrane changes the permeability of the adjacent portion of the membrane, allowing it to depolarize as well.
Correct Answer:
Verified
Correct Answer:
Verified
Q46: The _ is not part of the
Q47: The maintenance of a constant internal environment
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Q49: In a muscle organ like the biceps
Q50: Communication between neurons is achieved by<br>A) hormones.<br>B)
Q52: Which of the following is not involved
Q53: Depolarization of the nerve cell membrane occurs
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Q56: Smooth muscle<br>A) can stay contracted for long