Which is TRUE about the muscle fibers found in a muscle spindle?
A. They are not true muscle fibers because they cannot contract.
B. They are innervated by alpha motor neurons.
C. They function to maintain tension on spindle receptors.
D. When stimulated to fire, they always inhibit flexor muscles.
E. Their contraction is stimulated by alpha motor neurons and inhibited by gamma motor neurons.
C
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Development of the heart commences in the ________ week.
A. eighth B. first C. tenth D. third E. fifth
The granulations that appear during the healing of a large, open wound are composed mainly of
A. blood clots. B. phagocytic cells. C. scar tissue. D. fibroblasts surrounding blood vessels.
____________________ or systemic controls are regulatory mechanisms initiated outside an organ
Fill in the blank(s) with correct word
Which diagnostic exam measures the rate at which a person can exhale air?
A. Arterial blood gas B. Mantoux test C. Pulse oximetry D. Peak flow meter