muscle list- body wall

Question 1

internal oblique

Answer 1

O: iliac crest & lumbodorsal fascia

I: inferior rib, xphoid process & linea alba

A: compresses abdomen, depresses spine & flexes spine

Question 2

external intercostals

Answer 2

O: inferior border of each rib

I: superior border or rib below

A: elevates ribs during inspiration

Question 3

transversus abdominis

Answer 3

O:. iliac crest, ribs (6-12) & lumbodorsal fascia

I: linea alba & pubis

A: compresses abdomen

Question 4

external oblique

Answer 4

O: ribs 5-12

I:. iliac crest & linea alba

A: compresses abdomen, depresses ribs and flexes spine

Question 5

quadratus lumborum

Answer 5

O:. iliac crest & iliolumbar ligament

I:. last rib& transverse process of lumbar vertebrae

A: depresses ribs together

Question 6

diaphragm

Answer 6

O: xiphid process & cartilages ribs 4-10

I: central tendonus sheet

A: compresses abdomiopelvic cavity & expands thoracic cavity

Question 7

internal intercostals

Answer 7

O: superior border of each rib

I:. inferior border of rib above

A: depresses rib during expiration

Question 8

rectus abdominis

Answer 8

O: pubis

I: costal cartilages of ribs 5-7 & xphioid process of sternum

A: depresses ribs, flexes verbratal column