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Flashcards in THORACIC MUSCLE LIST Deck (12)
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1

actions of external intercostals

inhalation

2

actions of internal intercostals

hold ribs steady

3

actions of diaphragm

inhalation and exhalation

4

actions of serratus anterior

protracts and stabalizes scapular, assists in upward rotation

5

origins of external intercostals

lower border of ribs

6

origins of internal intercostals

inferior border

7

origins of diaphragm

sternum and xiphoid process

8

origins of serrates anterior

outer surface of 8 and 9 ribs

9

insertions of external intercostals

upper border of ribs above origin

10

insertions of internal intercostals

upper border of ribs above origin

11

insertions of diaphragm

central oponeurotic tendon

12

insertions of serratus anterior

costal aspect of medial margin of scapula