Multiple Choice
A "resting" motor neuron is expected to
A) release lots of acetylcholine.
B) have high permeability to sodium ions.
C) be equally permeable to sodium and potassium ions.
D) exhibit a resting potential that is more negative than the "threshold" potential.
E) have a higher concentration of sodium ions on the inside of the cell than on the outside.
Correct Answer:
Verified
Correct Answer:
Verified
Q61: The "threshold" potential of a membrane<br>A) is
Q62: For the following questions, refer to the
Q63: Temporal summation always involves<br>A) both inhibitory and
Q64: The "selectivity" of a particular ion channel
Q65: In a simple synapse, neurotransmitter chemicals are
Q67: The "undershoot" phase of after-hyperpolarization is due
Q68: ATP hydrolysis directly powers the movement of<br>A)
Q69: Adjacent neurons with direct (non-neurotransmitter)action potential transfer
Q70: Neurotransmitters affect postsynaptic cells by<br>A) initiating signal
Q71: A simple nervous system<br>A) must include chemical