When a membrane is stimulated due to opening of chemically-gated Na? channels
A) an impulse is propagated.
B) a graded potential is established.
C) an action potential is inhibited
D) the voltage across the membrane becomes more negative.
E) the voltage across the membrane stays the same.
Correct Answer:
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Q15: Which of the following statements concerning the
Q16: A threshold potential is
A) the same value
Q17: Which of the following is responsible for
Q18: During the rising phase of the action
Q19: Graded potentials
A) are local changes in membrane
Q21: When an action potential is over and
Q22: The refractory period
A) prevents action potentials from
Q23: Which of the following statements concerning propagation
Q24: The membrane is more permeable to K+
Q25: The trigger zone of a neuron
A) is
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