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Multiple Choice Questions (2 points each, total 50 points). Choose the best answ

ID: 3446335 • Letter: M

Question

Multiple Choice Questions (2 points each, total 50 points). Choose the best answer for each question.

1) Which of the following is true of the sleep cycle during a night of sleep? A) Each sleep cycle lasts about 45 minutes. B) Subjects first enter REM sleep and then transition to non-REM sleep. C) As the night goes on, the relative length of REM sleep increases in each successive cycle. D) Stages 3 and 4 of slow-wave sleep mostly occur in the early morning hours. E) Sleep cycles are random across the night.

2) ________ is a sleep disorder in which breathing stops during sleep. A) Night terrors B) Sleep apnea C) Insomnia D) Narcolepsy E) REM disorder

3) Sleep spindles A) are a result of increased melatonin. B) mark the onset of REM sleep. C) mark the onset of Stage 2 sleep. D) are relieved by melatonin treatment. E) occur more often in Stage 3 sleep.

4) REM sleep involves _______ and ______. A) dreaming; near paralysis B) dreaming; delta waves C) dreaming; theta waves D) deep sleep; increased muscle tone E) deep sleep; decreased muscle tone

5) The idea that sleep is physically and mentally restorative is reflected in the A) effects of melatonin on sleep. B) repair theory of sleep. C) adaptive theory of sleep. D) circadian rhythm theory. E) effects of cortisol on the sleep-wake cycle.

6) Night shift workers: A) quickly adapt to working at night. B) are more prone to diabetes and obesity. C) are more resistant to diabetes and obesity. D) both A) and C). E) both A) and B).

7) The ________ is reset each day by ________ . A) Suprachiasmatic nucleus; light B) Suprachiasmatic nucleus; cortisol C) REM sleep center; melatonin D) REM sleep center; cortisol E) Body clock; chronometer

8) Proceptivity is exhibited when: A) a female rat attempts to escape the presence of a male rat. B) a female rat is approached by a male rat. C) a female rat emits the lordosis posture in the presence of a male rat. D) a female rat chooses to spend more time with a male rat than a female rat. E) both C and D.

9) Luteinizing hormone: A) causes fimbriae in the Fallopian tube to move toward ovulation site. B) is released by the anterior pituitary gland. C) is released by the hypothalamus. D) causes the follicle to undergo a growth spurt. E) both B and D.

10) Castrated male rats can have their mating behaviors restored by: A) injections of estrogen into the hypothalamus. B) injections of testosterone into the hypothalamus. C) injections of testosterone into the hippocampus. D) both A and B. E) none of the above.

Explanation / Answer

1) Which of the following is true of the sleep cycle during a night of sleep?

C) As the night goes on, the relative length of REM sleep increases in each successive cycle.

2) ________ is a sleep disorder in which breathing stops during sleep.

B) Sleep apnea

3) Sleep spindles

C) mark the onset of Stage 2 sleep.

4) REM sleep involves _______ and ______.

E) deep sleep; decreased muscle tone

5) The idea that sleep is physically and mentally restorative is reflected in the

B) repair theory of sleep.

6) Night shift workers:

B) are more prone to diabetes and obesity.

7) The ________ is reset each day by ________ .

E) Body clock; chronometer

8) Proceptivity is exhibited when:

C) a female rat emits the lordosis posture in the presence of a male rat.

9) Luteinizing hormone:

E) both B and D. (is released by the anterior pituitary gland, causes the follicle to undergo a growth spurt)

10) Castrated male rats can have their mating behaviors restored by:

C) injections of testosterone into the hippocampus.