The first response to blood vessel injury and the process of hemostasis is the formation of temporary platelet plugs
a. true
b. false
Ans: b. false
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Which of the following organs is the main site of aldosterone secretion?
A. The atria of the heart B. Liver C. Kidneys D. Systemic and pulmonary blood vessels E. Adrenal glands
Which ganglia contain the cell bodies of the parasympathetic postganglionic neurons that serve the parotid salivary glands?
a) Ciliary ganglia b) Pterygopalatine ganglia c) Submandibular ganglia d) Otic ganglia e) None of these choices
Pulmonary (external) respiration refers to
A. gas exchange in the atmosphere. B. gas exchange between the lungs and the blood. C. gas exchange between the blood and body tissues. D. cellular respiration. E. atmospheric air coming into the lungs.
Lulu is 53 and has not had her menstrual period in a year. Several times a day, she feels a tingling in her upper chest, and then heat washes over her, in an upward direction. It is intensely uncomfortable for about 5 minutes, during which she is nearly overwhelmed with an urge to fling off her clothing. The cause of Lulu's hot flashes is
A. a decrease in gonadotropin concentration and an increase in estrogen concentration. B. an increase in gonadotropin concentration and an increase in estrogen concentration. C. a decrease in gonadotropin concentration and a decrease in estrogen concentration. D. an increase in gonadotropin concentration and a decrease in estrogen concentration.