Inguinal Canal

Question 1

Blood supply of posterior scrotum

Answer 1

Posterior scrotal branches of pudendal a.

Question 2

Blood supply to anterior scrotum

Answer 2

Anterior scrotal branches from deep external pudendal artery

Question 3

Blood supply to cremaster muscle

Answer 3

Cremaster a.

Question 4

Posterior scrotum innervation

Answer 4

Posterior scrotal n.’s

Question 5

Postero-inferior scrotum innervation

Answer 5

Perineal branches of posterior cutaneous n. Of thigh

Question 6

Anterior scrotum innervation

Answer 6

Anterior scrotal n.’s

Question 7

Anterolateral scrotum innervation

Answer 7

Genital branch of genitofemoral n.

Question 8

Posterior wall of deep inguinal ring

Answer 8

Transversalis fascia

Question 9

Anterior wall of deep inguinal ring

Answer 9

Internal oblique

Lateral crus of aponeurosis of external oblique

Question 10

Roof of deep inguinal ring

Answer 10

Transversalis fascia

Question 11

Floor of deep inguinal ring

Answer 11

Iliopubic tract

Question 12

Posterior wall of superficial inguinal ring

Answer 12

Conjoint tendon and inguinal ligament

Question 13

Anterior wall of superficial inguinal ring

Answer 13

Aponeurosis of external oblique

Question 14

Roof of superficial inguinal ring

Answer 14

Medial crus of aponeurosis of external oblique

Question 15

Floor of superficial inguinal ring

Answer 15

Lacunar ligament

Question 16

Innervation of cremaster muscle

Answer 16

Genital branch of genitofemoral n.

Question 17

Indirect hernia

Answer 17

Through deep inguinal ring
Most common
Lateral to inferior epigastric a./v.
Down into scrotum

Question 18

Direct inguinal hernia

Answer 18

Hesselbach’s/Inguinal triangle - rectus abdominus, inguinal ligament, inferior epigastric a./v.
Medial to epigastric a./v.
Protrusion directly through anterior abdominal wall
Usually due to weak conjoint tendon