Match the Types of Muscles, Labelled A

question 51

Short Answer

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.)
a.skeletal muscle only
b.single-unit smooth muscle only
c.cardiac muscle only
d.skeletal muscle and cardiac muscle
e.skeletal muscle and single-unit smooth muscle
f.single-unit smooth muscle and cardiac muscle
g.skeletal, single-unit smooth, and cardiac muscles
-Which events involved in muscle cell contraction are sequenced in the correct order?
1. Sodium channels open, allowing sodium to flow in.
2. Impulse reaches axon's synaptic knob.
3. ACh binds to receptors on sarcolemma.
4. Synaptic vesicles fuse with neuron's membrane and release ACh via exocytosis.
5. If enough sodium moves into the muscle cell, an impulse (action potential) develops.
a.1, 2, 3, 4, 5
b.2, 1, 3, 4, 5
c.2, 4, 3, 1, 5
d.3, 4, 5, 1, 2

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