SUGER 1 Anatomy

Question 1

Where is the mid inguinal point?

Answer 1

Mid inguinal point = Half way between the pubic sympysis and the anterior superior iliac spine.

• Femoral artery crosses into the lower limb at this point

Question 2

Where are the attachments of the inguinal ligament?

Answer 2

Pubic tubercle

Anterior superior iliac spine

Question 3

Give the structures which make up the following parts of the inguinal canal:

a) Roof (3)
b) Posterior wall (1)
c) Floor (2)
d) Anterior wall (2)

Answer 3

Roof = Transversalis fascia, Internal oblique, Transversus abdominus

Posterior wall = Transversalis fascia

Floor = Inguinal ligament & lacunar ligaments (floor = ligements)

Anterior wall = Aponeeurosis of the external oblique & Internal oblique

Question 4

What mechanism prevents herniation of the inguinal canal?

Answer 4

At times of increased intra-abdominal pressure the muscles of the anterior and posterior wall contract and clamp down on the canal

Question 5

Where is the deep ring of the inguinal ligament found?

Answer 5

Found above the midpoint of the inguinal ligament, lateral to the epigastric vessels.

Question 6

Where is the superficial ring of the inguinal canal?

Answer 6

Lies superior to the pubic tubercle.

Triangle shaped opening - formed by the evagination of the external oblique which creates the anterior covering.