Myotonia of skeletal muscles is characteristic of the excitement phase and refractory period
Indicate whether the statement is true or false
FALSE
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Downy, unpigmented hair on a fetus is called __________.
Fill in the blank(s) with the appropriate word(s).
Sympathetic stimulation of the kidney results in
A. constriction of afferent arterioles and an increase in the surface area of the glomerulus. B. constriction of afferent arterioles and a decrease in the surface area of the glomerulus. C. dilation of afferent arterioles and an increase in the surface area of the glomerulus. D. dilation of afferent arterioles and a decrease in the surface area of the glomerulus.
The ________ secrete(s) a hormone as a response to hypocalcemia.
A. pituitary gland B. pineal gland C. parathyroid glands D. thyroid gland E. thymus
The sodium chloride molecule breaks apart in water. What does "C" represent?
A. Sodium ion B. Water molecule C. Chloride ion D. Salt crystal E. Dissociation