External Oblique

Question 1

it is the most — + — flat abdominal wall muscle

Answer 1

large and superficial

Question 1

what type of muscle is it

Answer 1

superficial muscle associated with the upper limb and the anterior abdominal wall

Question 2

where does it originate

Answer 2

rib 5 - 12

Question 3

what does it insert onto

Answer 3

iliac crest of the tubercle
pubic tubercle

Question 4

Function

Answer 4

contralateral rotation of the torso

Question 5

what is its blood supply (3) CSI

Answer 5

lower posterior intercostal arteries
Subcostal arteries
Deep circumflex

Question 6

what is the nerve supply (3) SAT

Answer 6

thhoracoabdominal nerves (T7 - 11)
subcostal nerve (T12)
anterior rami T7 - 12

Question 7

what direction does the aponeurosis go

Answer 7

inferio medial

Question 8

what does the aponeurosis attach to

Answer 8

ribs 5 - 12 and iliac crest and linea alba

Question 9

what does the aponeurosis hide

Answer 9

retcus abdominis

Question 10

what does the aponeruosis fold over - what does this form

Answer 10

when it reaches the pelvic bone the floor of the inguinal canal

Question 11

how does the aponeuosis form the inguinal ligament

Answer 11

as it forms the floor of the inguinal canal it thickens

Question 12

what is the defect

Answer 12

a triangular shaped defect in the aponeurosis of the external oblique forms the the superficial inguinal ring

Question 13

inguinal canal
forms what (x2)

Answer 13

forms the anterior wall of the inguinal canal
also forms inguinal ligament in the floor of the canal