torso muscles

Question 1

diaphragm origin

Answer 1

xiphoid process, lower six costal cartilages, bodies of L1-L3

Question 2

diaphragm insertion

Answer 2

Converge into central tendon

Question 3

diaphragm action

Answer 3

draws tendon down and forward during inspiration

Question 4

diaphragm nerve innervation

Answer 4

Phrenic

Question 5

External Intercostals origin

Answer 5

Lower Border of Ribs

Question 6

External Intercostals insertion

Answer 6

Upper border of rib inferior to rib of origin

Question 7

External Intercostals action

Answer 7

supports intercostal space and elevates ribs in inspiration

Question 8

External Intercostals nerve innervation

Answer 8

Intercostals

Question 9

internal intercostals origin

Answer 9

upper border of ribs

Question 10

internal intercostals insertion

Answer 10

costal cartilages and edge of costal groove of rib superior rib of origin

Question 11

internal intercostals action

Answer 11

supports intercostal spaces and lowers ribs

Question 12

internal intercostals nerve innervation

Answer 12

Intercostals

Question 13

innermost intercostals origin

Answer 13

lower border of ribs

Question 14

innermost intercostals insertion

Answer 14

Upper border of rib inferior to rib of origin

Question 15

innermost intercostals action

Answer 15

elevates ribs

Question 16

innermost intercostals nerve innervation

Answer 16

Intercostals

Question 17

subcostal origin

Answer 17

internal surface of lower ribs near their angles

Question 18

subcostal insertion

Answer 18

superior border of 2nd or 3rd rib inferior

Question 19

subcostal action

Answer 19

depresses ribs

Question 20

subcostal nerve innervation

Answer 20

Intercostals

Question 21

transverse thoracis origin

Answer 21

internal surfaces of costal cartilages 2-6

Question 22

transverse thoracis insertion

Answer 22

posterior surface of lower sternum

Question 23

transverse thoracis action

Answer 23

depresses ribs and costal cartilages

Question 24

transverse thoracis nerve innervation

Answer 24

Intercostals

Question 25

External obligue origin

Answer 25

external surfaces of ribs 5-12

Question 26

External obligue insertion

Answer 26

linea alba, pubic tubercle, anteriro half of iliac crest

Question 27

External obligue action

Answer 27

compresses and supports abdomial viscera, flexes and rotates trunk

Question 28

External obligue nerve innervation

Answer 28

Ventral Rami of 6 inferior thoracic nerves

Question 29

internal oblique origin

Answer 29

thoracolumbar fasica, anterior 2/3 of iliac crest, lateral half of inguinal ligament

Question 30

internal oblique insertion

Answer 30

inferior border of ribs 10-12, linae alba, pubis via conjoint tendon

Question 31

internal oblique action

Answer 31

compresses and supports abdominal viscera, flexes and rotates the trunk

Question 32

internal oblique nerve innervation

Answer 32

Ventral Rami of 6 inferior thoracic nerves and first lumbar nerves

Question 33

pyramidals origin

Answer 33

body of pubis, anterior to rectus abdominus

Question 34

pyramidals insertion

Answer 34

linae alba

Question 35

pyramidals action

Answer 35

tenses linae alba

Question 36

pyramidals nerve innervation

Answer 36

iliohypogastric nerve

Question 37

rectus abdominus origin

Answer 37

pubic symphysis, pubic crest

Question 38

rectus abdominus insertion

Answer 38

xiphoid process, costal cartilages

Question 39

rectus abdominus action

Answer 39

flexes trunk, compresses abdominal viscera

Question 40

rectus abdominus nerve innervation

Answer 40

ventral rami of 6 inferior thoracic nerves

Question 41

transversus abdominus origin

Answer 41

costal cartilages 7-12, thoracolumbar fascia, iliac crest, lateral third of inguinal ligament

Question 42

transversus abdominus insertion

Answer 42

linae alba with aponeurosis of internal oblique, pubis crest, and pecten pubis via conjoint tendon

Question 43

transversus abdominus action

Answer 43

compresses and supports abdominal viscera

Question 44

transversus abdominus nerve innervation

Answer 44

ventral rami of 6 inferior thoracic and first lumbar nerves