Intrafusal muscle fibers
A. are found in muscle spindles.
B. are innervated by alpha motor neurons.
C. fire continuously at a constant rate.
D. are only found in extensor muscles.
E. generate most of the tension in a skeletal muscle.
Answer: A
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List 5 points to consider when selecting a disinfectant
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The only lymphatic organ(s) with afferent lymphatic vessels is(are) the ________
A) lymph nodes B) thymus C) red bone marrow D) tonsils E) spleen