Thorax/abdomen

Question 1

Origin of external intercostal

Insertion of external intercostal

Answer 1

Inferior margin of 1st 11 ribs

Superior margin of rib

Question 2

What is action of external intercostal? What is its nerve aupply?

Answer 2

Elevates ribs during inspiration

Intercostal nerves

Question 3

Blood supply for external intercostal? Rib 1-2/ rib 3-12

Answer 3

Supreme intercostal and superior thoracic arteries

Anterior intercostal/posterior intercostal and subcostsl arteries

Question 4

Origin of internal intercostal?

Insertion

Answer 4

Inferior of 1st 11 ribs

Superior margin of ribs below

Question 5

Action of internal intercostal? Nerve supply?

Answer 5

Elevate ribs during inspiration

Intercostal

Question 6

Blood supply for internal intercostal?

Answer 6

Same as external intercostal

Question 7

Origin of subcostal? Insertion?

Answer 7

Posteriorly on internal aspect of lower 6 ribs

Internal aspect of 2nd or 3rd rib above

Question 8

Action of subcostal? Nerve supply? Blood supply?

Answer 8

Elevate lower ribs
Intercostal
Posterior intercostal arteries

Question 9

Origin of transversus thoracics?

Answer 9

Internal aspect of sternum and adjacent costal cartilage of ribs 3-6

Question 10

Insertion of transversus thoracic? Action?

Answer 10

Internal aspects of costal cartilage of ribs 2-6

Depress upper ribs

Question 11

Nerve supply for transversus thoracic? Blood supply?

Answer 11

Intercostal

Anterior intercostal

Question 12

Origin of diaphragm?

Answer 12

Xiphoid process of sternum
Lower 6 cartilages
First 3 lumbar vertebrae
Medial and lateral arcuate ligaments

Question 13

Insertion of diaphragm?

Answer 13

Central tendon of the diaphragm

Question 14

Action of diaphragm?

Answer 14

Depress central tendon to invrease vertixal dimension of thorax during inspiration

Question 15

Nerve supply? Blood supply of diaphragm

Answer 15

Phrenic nerve
Superior phrenic
Inferior phrenic

Question 16

Origin of rectus admbdominus?

Answer 16

Pubic symphysis and crest

Question 17

Insertion of rectus abdominus

Answer 17

Costal cartilage of ribs 5 6 7

Xiphoid process

Question 18

Action of abs? Nerve supply? Blood?

Answer 18

Flexes trunk
Compress abdomen
Intercostal nerves t7-12
Superior and anferior epigastricnarteries

Question 19

Origin of external ab? Nerve supply?

Answer 19

Lower 8 ribs
Intercostal nerves t7-12
Iliohypogastric and ilioguinal nerves

Question 20

Insertion of external abd oblique?

Answer 20

Abdominal aponeurosis to linea alba
Pubis
Anterior iliac crest

Question 21

Action of external abd?

Answer 21

Bilateral- flex trunks and compress abd

Unilateral: lateral trunk flexion and contralateral rotatiob

Question 22

Blood supply for external abd?

Answer 22

Lower posterior intercostal, subcostal an deep circumflex iliac arteries

Question 23

Origin of Internal abd?

Answer 23

Inguinal ligament
Iliac crest
Throralumbar aponeurosis

Question 24

Insertion

Answer 24

Costal cartilage of lower 4 ribs

Abdominal aponeurosis to linea alba

Question 25

Actions of internal? Blood supply

Answer 25

Same ad external abd oblique | Lower posterior intercostal subcostal and deep circumflex iliac arteries

Question 26

Origin of transversus abd

Answer 26

Inguinal ligament Iliac crest Thoracolumbar aponeurorsis Cost cartilage of ribs 7-12

Question 27

Insertion of transversus abd?

Answer 27

Abd aponeurosis to linear alba | Pubis

Question 28

Action of transversus abd? Nerve supply

Answer 28

Compress abdomb Intercostal nerves 7-12 Ilihypogastric and ilioguinal nerves

Question 29

What is blood supply for trans abd?

Answer 29

Lower posterior costal, subcostal and deep circumflex

Question 30

Origin of quadratus lumborum?ninsertion?

Answer 30

Iliac crest | 12th rib transverse process 11-4

Question 31

Action of quadratus lumborum? Nerve supply? Blood supply

Answer 31

Normal: lateral flexion of trunk Reverse: elecste hip Ventral ramin t12-14 Subcostal and lumbar arteries

Question 32

Iliacus origin? Insertion?

Answer 32

Iliac fossa | Lesser trochanter of femur

Question 33

Action of iliacus?

Answer 33

Normal: flexion of hip Reverse: flexion of lumbar spine

Question 34

Nerve supply/ blood supply for iliac?

Answer 34

Fermor nerve | Subcostal and lumbar arteries

Question 35

Psoas major orijn?

Answer 35

T12-5 vertebrae and disk | L1-5 transverse process

Question 36

Insertion for psoas major? Action | For psoas major

Answer 36

Lesser trochanter of femur Normal; flex hip Reverse: flexion of lumbar spjne

Question 37

Nerve supply? Bloo supply for psoas major?

Answer 37

L2,l3 | Subcostal and lumbar arteries

Question 38

Psoas minor origin? | Insertion? Action?

Answer 38

T12 Pelvix rim Flexion of lumbar spjne

Question 39

Nerve supply for psoas minor? Blood supply?

Answer 39

L1 | Subcostal and lumbar