When an impulse arrives at the knob of the motor neuron, calcium
A) enters through active transport pumps and triggers the release of transmitter.
B) enters through voltage-gated channels and triggers the release of transmitter.
C) exits through active transport pumps and brings transmitter with it.
D) exits through voltage-gated channels and triggers transmitter release.
E) is released from synaptic vesicles.
Correct Answer:
Verified
Q47: Relaxation is facilitated by the release of
Q48: Acetylcholine is released from a neuron
A) by
Q49: The repolarization of the action potential involves
Q50: Acetylcholine exerts its effect by
A) stimulating the
Q51: For relaxation to occur,
A) calcium leaves the
Q53: Which is the neurotransmitter that causes the
Q54: Myosin kinase catalyzes the transfer of Pi
Q55: The action potential of a muscle fiber
Q56: When a muscle relaxes,
A) crossbridges form and
Q57: The neuromuscular junction is usually located at
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