Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle cell and thereby initiates the steps of contraction?
A) Acetylcholinesterase
B) Acetylcholine
C) Serotonin
D) Norepinephrine
Correct Answer:
Verified
Q34: Which sequence correctly lists the changes that
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
Q52: When an impulse arrives at the knob
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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