ch.35

Question 1

circadian rhythms

Answer 1

rhythm that completes a full cycle every 24 hours

Question 2

enuresis

Answer 2

involuntary urination; most often used to refer to a child who involuntarily urinates during the night

Question 3

hypersomnia

Answer 3

condition characterized by excessive sleeping, especially daytime sleeping

Question 4

insomnia

Answer 4

difficulty in falling asleep, intermittent sleep, or early awakening from sleep

Question 5

melatonin

Answer 5

a natural chemical produced at night that decreases wakefulness and promotes sleep

Question 6

narcolepsy

Answer 6

condition characterized by an uncontrolled desire to sleep

Question 7

obstructive sleep apnea

Answer 7

in adults, five or more predominantly obstructive respiratory events (the absence of breathing [apnea] or diminished breathing efforts [hypopnea] or respiratory effort-related arousals) during sleep,

Question 8

parasomnias

Answer 8

patterns of waking behavior that appear during sleep

Question 9

restless legs syndrome

Answer 9

a condition in which patients are unable to lie still and report experiencing unpleasant creeping, crawling, or tingling sensations in the legs

Question 10

sleep cycle

Answer 10

passage through the four stages of NREM sleep (I, II, III, IV), then reversal (IV, III, II), and finally, instead of reentering stage I and awakening

Question 11

sleep deprivation

Answer 11

passage through the four stages of NREM sleep (I, II, III, IV), then reversal (IV, III, II), and finally, instead of reentering stage I and awakening

Question 12

somnambulism

Answer 12

sleepwalking

Question 13

rest

Answer 13

body is in a decreased state of activity

Question 14

hypothalamus

Answer 14

control center for sleeping and waking

Question 15

RAS

Answer 15

facilitates reflex and voluntary movements