THORACIC MUSCLE LIST Flashcards
1
Q
actions of external intercostals
A
inhalation
2
Q
actions of internal intercostals
A
hold ribs steady
3
Q
actions of diaphragm
A
inhalation and exhalation
4
Q
actions of serratus anterior
A
protracts and stabalizes scapular, assists in upward rotation
5
Q
origins of external intercostals
A
lower border of ribs
6
Q
origins of internal intercostals
A
inferior border
7
Q
origins of diaphragm
A
sternum and xiphoid process
8
Q
origins of serrates anterior
A
outer surface of 8 and 9 ribs
9
Q
insertions of external intercostals
A
upper border of ribs above origin
10
Q
insertions of internal intercostals
A
upper border of ribs above origin
11
Q
insertions of diaphragm
A
central oponeurotic tendon
12
Q
insertions of serratus anterior
A
costal aspect of medial margin of scapula