Abdominal wall and Thoracic wall

Question 1

External intercostal MA

Answer 1

Draw ribs superiorly for inhalation

Question 2

External intercostal Origin

Answer 2

Inferior border of rib above

Question 3

External intercostal insertion

Answer 3

Superior border of rib below

Question 4

External intercostal nerve

Answer 4

Thoracic intercostal nerve T1-T11

Question 5

internal intercostal MA

Answer 5

draw ribs inferiorly for exhalation

Question 6

internal intercostals origin

Answer 6

inferior border of rib above

Question 7

internal intercostals insertion

Answer 7

superior border of the rib above

Question 8

internal intercostals innernation

Answer 8

thoracic intercostal nerve T1-T11

Question 9

diaphragm origin

Answer 9

costal: inner surface of lower 6 ribs
lumber: upper 2-3 lumber vertebrae
sternal: xyphoid process

Question 10

diaphragm insertion

Answer 10

central tendon

Question 11

diaphragm actions

Answer 11

draw down central tendon of diaphragm
increase volume of thoracic column during inhalation (diaphragm will contract and flatten)

Question 12

diaphragm innervation

Answer 12

phrenic nerve (C3-C5)

Question 13

quadratus lumborum origin

Answer 13

12th ribs and lumber TP

Question 14

quadratus lumborum insertion

Answer 14

iliolumbar ligament, iliac crest

Question 15

quadratus lumborum action

Answer 15

lateral hike/elevation of pelvis
ipsi lateral flexion of vertebrae
extend vertebral column
fix last rib during forced inhale

Question 16

quadratus lumborum nerve

Answer 16

ventral branches T12-L4

Question 17

psoas major origin

Answer 17

TP T12-L5

Question 18

psoas major insertion

Answer 18

lesser trochanter

Question 19

psoas major action

Answer 19

hip flexion
lateral flexion of vertebral column
anterior pelvic tilt
flex trunk (hip hinge)

Question 20

psoas major innervation

Answer 20

ventral rami L1-L3

Question 21

iliacus origin

Answer 21

iliac fossa
sacrum
anterior SI ligaments

Question 22

iliacus insertion

Answer 22

lesser trochanter and psoas tendon

Question 23

iliacus action

Answer 23

flex hip and stabilize hip

Question 24

iliacus innervation

Answer 24

femoral L2-L4

Question 25

rectus abdominis origin

Answer 25

pubic crest and symphysis

Question 26

rectus abdominis insertion

Answer 26

cartilage of 5-7 ribs and xyphoid process

Question 27

rectus abdominis actions

Answer 27

flex vertebral column compress abdominal viscera posterior pelvic tilt

Question 28

rectus abdominis innervation

Answer 28

thoracoabdominal nerves (ventral rami T6-T12)

Question 29

external oblique origin

Answer 29

external surface of 5-12 ribs

Question 30

external oblique insertion

Answer 30

linea alba pubic tubercle anterior iliac crest

Question 31

external oblique actions

Answer 31

ipsi lateral flexion and contralateral rotation of vertebral column flex vertebral column compress abdomen

Question 32

external oblique nerve

Answer 32

thoraco-abdominal nerves T7-T11

Question 33

internal oblique origin

Answer 33

thoracolumnar fascia iliac crest inguinal ligament

Question 34

internal oblique insertion

Answer 34

inferior borders of 10-12th ribs linea alba pecten pubis

Question 35

internal oblique actions

Answer 35

ipsi lateral flexion ipsilateral rotation of vertebral column flexion of vertebral column compress abdomen

Question 36

internal oblique nerve

Answer 36

thoraco-abdominal nerve (T6-T12)

Question 37

Transverse Abdominis origin

Answer 37

7-12th costal cartilages thoracolumnar fascia iliac crest inguinal ligament

Question 38

transverse abdominis insertion

Answer 38

linea alba pubic crest pecten pubis

Question 39

transverse abdominis actions

Answer 39

compress abdominal viscera antagonist of diaphragm with expiration

Question 40

transverse abdominis innervation

Answer 40

thoraco-abdominal nerves (T6-T12)