When a muscle fiber is subjected to a stimulus, it contracts completely. This is called:
a. threshold stimulus
b. the all-or-none-law
c. twitch contraction
d. tetanic contraction
b. the all-or-none-law
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Which is not correct regarding the urinary bladder?
A. There are two ureteral openings. B. The inferior portion of the bladder is called the apex. C. The mucosa has rugae for distension. D. The peritoneum covers only the superior surface of the bladder.
During the cephalic phase of gastric secretion,
A) the intestine reflexively inhibits gastric emptying. B) secretin inhibits parietal and chief cells. C) the stomach responds to distention. D) production of gastric juice slows down. E) there is an increased flow of action potentials along the vagus nerve to the stomach.
The major components of whole blood are ____________________.
plasma and formed elements albumin and immunoglobulins red and white blood cells hormones, enzymes, and organic wastes None of the choices are correct
Olfaction is the sense of __________.
Fill in the blank(s) with the appropriate word(s).Fill in the blank(s) with the appropriate word(s).