Topic 1 - Sleep

Question 1

A natural state of bodily rest, a time of response and restoration that is essential to human life.

Answer 1

Sleep

Question 2

_____ is characterized by recumbency, closed eyes, decreased movement, and reduced responsiveness to some internal and most external _______.

Answer 2

Sleep
Stimuli

Question 3

Examples of ________ stimuli include needing to urinate or experiencing anxiety, and examples of ________ stimuli include sounds or movement.

Answer 3

Internal
External

Question 4

T/F - During sleep, there is filtering and greater indifference to stimuli, as well as complete non-responsiveness.

Answer 4

False - During sleep, there is filtering and greater indifference to stimuli, BUT NOT complete non-responsiveness.

Question 5

T/F - Waking up is necessary in various situations of danger or need.

Answer 5

True

Question 6

Some stimuli are more effective _________ than others, such as hearing one’s own name, a loud noise, a baby’s cries or needing to urinate.

Answer 6

Awakeners

Question 7

Sleep was once considered a _______ state but is now understood to be a highly regulated _____________ associated with many important body functions.

Answer 7

Passive
Neuroactivity

Question 8

What are the 2 principal stages of sleep?

Answer 8

1) Non REM Sleep (NREM)
2) REM (Rapid Eye Movement) Sleep

Question 9

______ sleep constitutes 75-80% of total sleep and ____ constitutes 20-25% of total sleep.

Answer 9

NREM
REM

Question 10

______ sleep occurs in stages of increasing “depth” where eye and body _________ diminish to almost none as sleep depth increases.

Answer 10

NREM
Movements

Question 11

T/F - REM sleep occurs in cycles with NREM sleep.

Answer 11

True

Question 12

T/F - REM cycle lengths increase over an 8-hour sleep, with most REM occurring in the first third.

Answer 12

False - REM cycle lengths increase over an 8-hour sleep, with most REM occurring in the LAST third.

Question 13

The body is in a strong _______________ state with slow stable vital signs during NREM sleep and body temperature _________.

Answer 13

Parasympathetic
Decreases

Question 14

T/F - Cerebral blood flow increases during NREM sleep.

Answer 14

False - Cerebral blood flow DECREASES during NREM sleep.

Question 15

Generalized muscle atonia that occurs during REM sleep.

Answer 15

Sleep Atonia (aka. Pseudo-Paralysis)

Question 16

The brain is very active during ____ sleep and blood flow to it increases.

Answer 16

REM

Question 17

During REM sleep, there are burst of rapid eye movements and _________ patterns of blood pressure, heart rate and respiration.

Answer 17

Irregular

Question 18

T/F - People with CV disease are most susceptible to heart attacks or other emergencies in the early morning hours.

Answer 18

True

Question 19

Fill in the blanks for the normal sleep cycle:
Wakefulness > Stage 1 NREM (_______ sleep) > Stage 2 NREM (_____ sleep) > Stage 3 - 4 - 3 NREM (____ sleep) > Stage 2 NREM > REM Sleep > __-__ Min Wakefulness Episode > Stage 1 NREM > etc. > Final REM Stage > Person Wakes Up

Answer 19

Shallow
Light
Deep
1-2 Min

Question 20

T/F - People awakened out of REM sleep are usually foggy, confused and/or irritable.

Answer 20

False - People awakened out of NREM sleep are usually foggy, confused and/or irritable.

Question 21

Fill in the blanks for the normal sleep ratios:
% of Total Sleep
Stage 1 NREM: up to ___%
Stage 2 NREM: ___-___%
Stage 3/4 NREM: ___%
REM: ___-___%

Answer 21

10%
40-50%
20%
20-25%

Question 22

The NREM-REM cycle rotates every ___-____ minutes.

Answer 22

90-110 minutes

Question 23

T/F - Stage 3/4 NREM is longer in the later part of the night.

Answer 23

False - Stage 3/4 NREM is longer in the EARLIER part of the night.

Question 24

The first REM is about ___ minutes. As the night progresses, deep sleep stages _______ and REM stages ________.

Answer 24

10 minutes
Shorten
Lengthen

Question 25

It is significant to note that when people get an hour or two less sleep than they should, it is ____ sleep that is most impaired.

Answer 25

REM

Question 26

In order for sleep to be ___________, we need several complete sleep cycles each night.

Answer 26

Restorative

Question 27

Deep sleep and REM stages are influenced by ___________ factors — if the person misses some of these sleep times, they increase once ____________ sleep is again possible.

Answer 27

Homeostatic
Unrestricted