Ant/Post Wall Muscle Chart

Question 1

rectus abdominus m proximal attachment?

Answer 1

xiphoid and lower costal cartilages

Question 2

rectus abdominus distal attachment?

Answer 2

pubic symphysis and pubic crest

Question 3

rectus abdominus action?

Answer 3

flex trunk

Question 4

rectus abdominus innervation?

Answer 4

ventral rami

Question 5

external abdominal oblique fiber direction?

Answer 5

anteroinferior; hands in same pocket

Question 6

external abdominal oblique proximal attachment?

Answer 6

ribs 5-12 and iliac crest

Question 7

external abdominal oblique distal attachment?

Answer 7

linea alba and pubic tubercle

Question 8

external abdominal oblique bilateral action?

Answer 8

flex trunk

Question 9

external abdominal oblique unilateral actions?

Answer 9

rotate trunk contralateral
lateral flex trunk ipsilateral

Question 10

external abdominal oblique innervation?

Answer 10

ventral rami

Question 11

internal abdominal oblique fiber direction?

Answer 11

posteroinferior; hands in opposite pocket

Question 12

internal abdominal oblique proximal attachments?

Answer 12

thoracocolumbrar fascia
ribs 10-12
iliac crest

Question 13

internal abdominal oblique distal attachments?

Answer 13

linea alba
pubic tubercle

Question 14

internal abdominal oblique bilateral action?

Answer 14

flex trunk

Question 15

internal abdominal oblique unilateral actions?

Answer 15

rotate trunk ipsilateral
lateral flex trunk ipsilateral

Question 16

internal abdominal oblique innervation?

Answer 16

ventral rami

Question 17

transversus abdominus fiber direction?

Answer 17

horizontal

Question 18

transversus abdominus proximal attachments?

Answer 18

thoracocolumbrar fascia
ribs 6-12
iliac crest

Question 19

transversus abdominus distal attachments?

Answer 19

linea alba
pubic crest

Question 20

transversus abdominus bilateral actions?

Answer 20

compress abdominal contents (corset; girdle)
stabilize lumbar spine and pelvis

Question 21

transversus abdominus innervation?

Answer 21

ventral rami

Question 22

diaphragm proximal attachment?

Answer 22

lumbar vertebra

Question 23

diaphragm distal attachments?

Answer 23

costal cartilages; xiphoid

Question 24

diaphragm actions?

Answer 24

inspiration, contracts and flattens
expiration, passively relaxes

Question 25

on which bones/joints does the diaphragm do its action?

Answer 25

respiration

Question 26

diaphragm innervation?

Answer 26

phrenic nn (C3-C5) (main one)
lower intercostal nn

Question 27

psoas major proximal attachments?

Answer 27

bodies
transverse processes
IVDs L1-L5

Question 28

psoas major distal attachment?

Answer 28

lesser trochanter

Question 29

psoas major action?

Answer 29

flexion of the thigh (femur; hip joint)

Question 30

psoas major innervation?

Answer 30

ventral rami L2-L4 (essentially femoral nerve)

Question 31

iliacus m proximal attachment?

Answer 31

iliac fossa

Question 32

iliacus distal attachment?

Answer 32

lesser trochanter

Question 33

iliacus action?

Answer 33

flexion of the thigh (femur; hip joint)

Question 34

iliacus innervation?

Answer 34

femoral n (L2-L4)

Question 35

quadratus lumborum proximal attachments?

Answer 35

rib 12 and
lumbar transverse processes

Question 36

quadratus lumborum distal attachment?

Answer 36

iliac crest

Question 37

quadratus lumborum unilateral actions?

Answer 37

lateral flexion of the trunk (vertebral column)
ipsilateral hip hike of the os coxa (hip bone)

Question 38

quadratus lumborum bilateral action?

Answer 38

extension of the trunk (vertebral column)

Question 39

quadratus lumborum innervation?

Answer 39

ventral rami T12-L4