Intercostals and Diaphragm Flashcards Preview

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Flashcards in Intercostals and Diaphragm Deck (24):
1

External Intercostalis: O

Inferior border of Ribs

2

External Intercostalis: I

Superior border of Ribs below

3

External Intercostalis: N

Intercostal Nerves

4

External Intercostalis: A

Elevates Ribs during forced inspiration

5

Internal Infercostalis: O

Inferior border of Ribs

6

Internal Infercostalis: I

Superior border of Ribs below

7

Internal Infercostalis: N

Intercostal Nerves

8

Internal Infercostalis: A

Depresses Ribs during forced expiration

9

Intercostalis: O

Inferior border of Ribs

10

Intercostalis: I

Superior border of Ribs below

11

Intercostalis: N

Intercostal Nerves

12

Intercostalis: A

Depresses Ribs during forced expiration
Elevates Ribs (a little bit because of interchondral part)

13

Subcostals: O

Inferior surface of lower Ribs

14

Subcostals: I

Superior border of 2 or 3 Ribs below

15

Subcostals: N

Intercostal Nerves

16

Subcostals: A

Depresses Ribs

17

Transversus Thoracis: O

Posterior surface of lower Sternum

18

Transversus Thoracis: I

Internal surface of Costal Cartilages 2-6

19

Transversus Thoracis : N

Intercostal Nerves

20

Transversus Thoracis: A

Weakly Depresses Ribs

21

Diaphragm: O

first three lumbar vertebrae, lower six costal cartilages, and inner surface of xiphoid process of sternum

22

Diaphragm: I

muscle fibers converge upward and inward to form the central tendon

23

Diaphragm: N

Phrenic Nerve C3-5

24

Diaphragm: A

flattens on contraction increasing the vertical dimensions of thorax – Primary muscle of Respiration