Smooth muscle tone is maintained by the prolonged presence of [_____] in the muscle cell's cytosol?
A) ATP
B) calcium ions
C) sodium ions
D) acetylcholine
E) oxygen
Correct Answer:
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Q21: In the diagram,acetylcholine is released from _
Q22: On the diagram,a tendon is formed by
Q23: Which microscopic structure is found only in
Q24: At the neuromuscular junction,_must enter the synaptic
Q25: In the diagram,calcium ions will rush into
Q27: A brief contraction of all muscle fibers
Q28: What energizes the myosin head?
A)acetylcholine
B)calcium ions
C)Phosphate release
D)ATP
Q29: Describe the factors that lead to muscle
Q30: Which term describes a somatic motor neuron
Q31: On the diagram,which layer is composed of
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