Gamma motor neurons
A. innervate the whole muscle.
B. regulate the sensitivity of the muscle spindle.
C. are located in tendons.
D. transmit action potentials to skeletal muscle.
E. enable the brain to perceive that a muscle has been stretched.
Answer: B
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The plasma membrane
A) is a watery gel in which structures are suspended. B) contains the powerhouse of the cell. C) is the central government of the cell. D) regulates the exchange of substances with the environment. E) carries the cell's hereditary information.
Cortisol
a. is the primary mineralocorticoid b. excess is responsible for Cushing's syndrome c. decreases blood glucose, blood fatty acid, and blood amino acid levels d. has characteristics a and b e. has none of the above characteristics
What is the long-term effect of chronic exercise on the vascular system?
A. Opens precapillary sphincters B. Constricts vessels C. Closes precapillary sphincters D. Angiogenesis
The products of the first meiotic division of spermatogenesis are spermatids.
Answer the following statement true (T) or false (F)