What is an antagonist?
A. A muscle that has the opposite action
B. The main muscle of the synergist to perform the action
C. A muscle that holds an origin stable for another muscle
D. A muscle that has the same action
Answer: A
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Which of the following phases or processes in the monthly reproductive cycle of the female occur simultaneously?
A) regression of the corpus luteum and a decrease in ovarian progesterone secretion B) maximal steroid secretion by the corpus luteum and menstruation C) early follicular development and the secretory phase in the uterus D) maximal LH secretion and menstruation
Osteomyelitis is
A. a disease in adults, especially women, characterized by a reduced amount of bone matrix. B. a disease in adults characterized by softening of bones resulting from calcium depletion. C. a group of genetic disorders producing very brittle bones that are easily fractured; occurs because of insufficient collagen development. D. a disease in children characterized by soft, bowed, and swollen bones. E. bone inflammation that often results from bacterial infection.
The breakdown products of acetylcholine are reabsorbed into the presynaptic neuron and reassembled in preparation for the next event
Indicate whether the statement is true or false
What is the most harmful result of prolonged depolarization at cholinergic sites?
a. heart attack b. brain embolism c. atherosclerosis d. lung cancer e. respiratory failure