Test 3 muscles of thoracic wall Flashcards Preview

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Flashcards in Test 3 muscles of thoracic wall Deck (32):
0

external intercostal superior attachment, origin

inferior border of ribs

1

external intercostal inferior attachment, insertion

superior border of ribs below

2

external intercostal innervation

intercostal nerve

3

external intercostal action

during force inspiration elevates ribs

4

internal intercostal superior attachment, origin

inferior border of ribs

5

internal intercostal inferior attachment, insertion

superior border of ribs below

6

internal intercostal innervation

intercostal nerve

7

internal intercostal action

during forced inspiration: interosseous part depresses, interchondral part elevates ribs

8

innermost intercostal superior attachment, origin

inferior border of ribs

9

innermost intercostal inferior attachment, insertion

superior border of ribs below

10

innermost intercostal innervation

intercostal nerve

11

innermost intercostal action

during forced inspiration: interosseous part depresses, interchondral part elevates ribs

12

transversus thoracis superior attachment, origin

posterior surface of lower sternum

13

transversus thoracis inferior attachment, insertion

internal surfaces of costal cartilages 2-6

14

transversus thoracis innervation

intercostal nerve

15

transversus thoracis action

weakly depresses ribs

16

subcostal superior attachment, origin

internal surface of lower ribs near their angles

17

subcostal inferior attachment, insertion

superior borders of 2nd or 3rd ribs below

18

subcostal innervation

intercostal nerve

19

subcostal action

probbably act in same manner as internal intercostal muscles

(during forced inspiration: interosseous part depresses, interchondral part elevates ribs)

20

levatores costarum superior attachment, origin

transverse process of C7-T11

21

levatores costarum inferior attachment, insertion

sub adjacent ribs between tubercles and angles

22

levatores costarum innervation

posterior rami of C8-T11 nerves

23

levatores costarum action

elevate ribs

24

serratus posterior superior superior attachment, origin

nuchal ligament, SP of C7-T3 vertebrae

25

serratus posterior superior inferior attachment, insertion

superior borders of 2nd-4th ribs

26

serratus posterior superior innervation

2nd- 5th intercostal nerves

27

serratus posterior superior action

elevate ribs

28

serratus posterior inferior superior attachment, origin

SP of T11-L2 vertebrae

29

serratus posterior inferior, inferior attachment, insertion

inferior borders of 8th-12th ribs near their angles

30

serratus posterior inferior innervtion

9th-11th intercostal nerves, subcostal nerve(T12)

31

serratus posterior inferior action

depress ribs