12.1 cardio-resp problems associated with sleep Flashcards
1
Q
what are the functions of sleep?
A
Restoration Memory Immune Energy conservation Circadian homeostasis preservation
2
Q
What are the two nerves associated with sleep?
A
Vagus: afferents to brainstem letting us know about irritants and stretch
Phrenic: motor
3
Q
Define hypotonia and when is it implicated in sleep?
A
loss of muscle tone - implicated in REM sleep
4
Q
what is the sympathetic and parasympathetic activation during sleep
A
Sympathetic - progressive reduction from stages 1-4
Para - increased activity
5
Q
what is obstructive OSA?
A
cessation of airflow from obstruction
6
Q
what is central OSA?
A
cessation of airflow from reduced drive
7
Q
What are the risk factors for OSA?
A
Craniofacial Nose Mouth jaw tonsils muscle tone obesity
8
Q
What is cheyne stokes respiration?
A
periods of alternating hyperventilation and apnoea
