Author Question: Which of the following constitute the effects of normal sleep on the cardiovascular system? 1. ... (Read 62 times)

V@ndy87 · **on:** Jul 16, 2018

Which of the following constitute the effects of normal sleep on the cardiovascular system?

1. Tachycardia during slow-wave sleep
2. Vasoconstriction during slow-wave sleep
3. Hypotension with significant phasic elevations during REM sleep
4. Slightly decreased cardiac output during non-REM and REM sleep
a. 1 and 2 c. 1 and 4
b. 2 and 3 d. 3 and 4

Question 2

The submental electromyogram electrodes are placed in which of the following positions?

1. One on the center of the chin
2. Two along the jawline, 3 cm apart
3. Two on the hyoid bone lateral to each other and 2 cm apart
4. One on either side of the chin, between the chin and hyoid bone, 2 cm apart
a. 1 and 2 c. 2 and 3
b. 1 and 4 d. 3 and 4

akpaschal · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
During REM sleep, there is hypotension with significant phasic elevations in blood pressure. During non-REM and REM sleep, cardiac output is slightly decreased. Bradycardia and vasodi-lation occur during slow-wave sleep.

Answer to Question 2

ANS: B
Three electrodes are typically affixed to the chin with tape. Two of these electrodes are placed between the tip of the chin and the hyoid bone, lateral to each other and 2 cm apart; a third elec-trode is placed in the center of the chin.