The ventilatory response to CO2 is enhanced by:
A. hypoxia
B. alkalosis
C. sleep
D. barbiturates
ANS: A
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Tendons and ligaments consist primarily of which protein?
A. Keratin B. Elastin C. Fibrin D. Actin E. Collagen
The sensation of thirst results from
A. stimulation of baroreceptors. B. a decrease in the osmolality of the extracellular fluid. C. hypertension (increased blood pressure). D. stimulation of osmoreceptor cells in the hypothalamus. E. an increase in the plasma volume.
Gout is
A. a condition that may involve an autoimmune disease. B. a metabolic disorder caused by increased uric acid in blood. C. the most common type of arthritis. D. an inflammation of any joint. E. a bacterial infection transmitted by ticks.
A young couple has had regular, unprotected sexual intercourse for 4 years, without a pregnancy. They are seeking help at an assisted reproduction/in vitro fertilization clinic for infertility
The husband is very serious about weight training and physical fitness. Semen analysis reveals a sperm count of 10 million/ml (i.e., very low). His blood analysis reveals an elevated testosterone level. The psychiatrist at the clinic suspects that the husband injects (i.e., abuses) testosterone (T), which turns out to be true. Further blood work will reveal which of the following: A. increased estrogen, decreased LH, decreased FSH B. increased DHT, increased estrogen, increased FSH C. increased DHT, increased LH, increased FSH D. increased estrogen, decreased LH, decreased DHT E. decreased DHT, decreased FSH, decreased LH