Thoracic muscles Flashcards
1
Q
diaphragm nerve and shape
A
phrenic and dome
2
Q
diaphragm responsible for
A
normal quiet breathing
flattens when contracts, more space in cavity, inspration
3
Q
diaphragm o/i
A
o: inferior of ribs, sternum, lumbar vertebrae
i: central tendon of diaphragm
4
Q
external intercostals
A
quite inspiration
elevates ribs
5
Q
external and internal intercostals nerve
A
intercostal nerve
6
Q
external intercostals o/i
A
o: inferior border or rib below
i:superior border of rib
7
Q
internal intercostal
A
forced expiration
depresses ribs
8
Q
other muscle in forced expiration
A
transversus thoracis
9
Q
scalene
A
elevates first and second rib during forced inspiration
10
Q
scalene nerves
A
cervical and brachial plexus
