ABDOMINAL MUSCLE LIST

Question 1

actions of external oblique

Answer 1

contralateral rotation of torso

Question 2

actions of internal oblique

Answer 2

compresses abdomen, rotation of torso

Question 3

actions of transversus abdominis

Answer 3

flexion of lumbar spine

Question 4

actions of rectus abdomens

Answer 4

flexion of lumbar spine

Question 5

actions of linea alba

Answer 5

midline that extends from manubrium to pubic region. Divides 6 pack in half, not a muscle.

Question 6

origins of external oblique

Answer 6

ribs 5-12

Question 7

origins of internal oblique

Answer 7

inguinal ligament, illiac crest, lumbodorsal fascia

Question 8

origins of transversus abdominis

Answer 8

iliac crest, inguinal ligament, thoraculumbar fascia, costal cartilliges

Question 9

origins of rectus abdominus

Answer 9

crest of pubis

Question 10

origins of linea alba

Answer 10

zyphoid process

Question 11

insertions of external oblique

Answer 11

musculus obliqus externus abdominis

Question 12

insertions of internal oblique

Answer 12

linea alba, pecten pubis and ribs 10-12

Question 13

insertions of transverses abdominis

Answer 13

xiphoid process, linea alba, pubic crest, pectin pubis

Question 14

insertions of rectus abdominis

Answer 14

costal cartilages of ribs, 5-7, xiphoid process

Question 15

insertions of line alba

Answer 15

pubic symphysis