Muscles of Respiration Flashcards
1
Q
Diaphragm (origin)
A
xiphoid process, lower 6 costal cartilages, L1-L3 vertebrae
2
Q
Diaphragm (insertion)
A
converges into central tendon
3
Q
Diaphragm (action)
A
draws central tendon down and forward during inspiration
4
Q
Diaphragm (innervation)
A
phrenic nerve
5
Q
Internal intercostals (origin)
A
Lower border of rib (11 pairs)
6
Q
Internal intercostals (insertion)
A
upper border of rib below origin
7
Q
Internal intercostals (action)
A
forced expiration with exertion
8
Q
Internal intercostals (innervation)
A
intercostal nerves
9
Q
External intercostals (origin)
A
Lower border of rib (11 pairs)
10
Q
External intercostals (insertion)
A
upper border of rib below origin
11
Q
External intercostals (action)
A
inspiration with exertion and quiet breathing
12
Q
External intercostals (innervation)
A
intercostal nerves
