All of the following are true of muscle spindles except they
A) are found within skeletal muscle.
B) consist of specialized fibers called intrafusal fibers.
C) are found in tendons.
D) are the receptor for the stretch reflex.
E) are innervated by gamma motor neurons.
C
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The fluid containing sperm is called __________.
Fill in the blank(s) with the appropriate word(s).
Because humans walk in an upright position, the two terms that can be used interchangeably are:
a. posterior and ventral b. posterior and inferior c. posterior and superficial d. posterior and dorsal
What is the single most abundant chemical substance in the body?
What will be an ideal response?
____ signals consist of chemicals secreted by cells into the extracellular fluid that elicit effects from the same cell.
Fill in the blank(s) with the appropriate word(s).