Inguinal Canal

Question 1

Inguinal Ligament

Answer 1

Rolled under border of the ext. oblique aponeurosis

ASIS-pubic tubercle

Question 2

Conjoint Tendon

Answer 2

Combined aponeurosis of inf./med. margins of IO and TA muscles into pubis

Question 3

Lacunar L.

Answer 3

B/w pubic rami and inguinal L.

Anchors inguinal L. To pubis

Question 4

Pectineal line

Answer 4

Continuation of fibers from lacunar l. (Along pectin pubis)

Question 5

Femoral Canal

Answer 5

Lateral to lacunar L.

Question 6

Deep Inguinal Ring

Answer 6

Entrance to inguinal canal
Beginning of invagination of peritoneum into TF

Sup. To inguinal l.
Lateral to inferior epigastric a.
Vas deferents/gonadal vessels&nerves pass (round lig. Of uterus in F)

Question 7

Superficial Inguinal Ring

Answer 7

Exit of inguinal canal

Split in ext. oblique apo

Question 8

Layers of Inguinal Region

Answer 8

1. Ext. Oblique Apo
2. Int. Oblique M.
3. Transversus Ab. M.
4. Trans. Fascia
5. Parietal peritoneum
6. Inguinal L.

Question 9

Iliopubic tract

Answer 9

Thickening of TF posterior to inguinal L.

Question 10

Genitofemoral n.

Answer 10

L1/L2
Motor: cremaster m.
Sensory: small part of medial thigh & scrotum/labia fascia

Question 11

Testicular Descent

Answer 11

Start at T10
Gonads connected to future scrotum via gubernaculum
Descend with peritoneal out-pocketing (called processes

Question 12

Layers Desceding with Testes

Answer 12

Skin and dartos fascia (scrotum)
External Ob. — External spermatic fascia
Internal Ob. — Cremasteric fascia
Transversalis Fascia — Internal spermatic fascia
Peritoneum — Tunica vaginalis (parietal & visceral)

Question 13

Spermatic cord contents

Answer 13

Vas deferens
Testicular a./v. (Pampiniform plexus)
Gonadal nn. 
Gonadal Lymphatics
Cremasteric a/v.
Genital branch of genitofemoral n.

Question 14

Persistent Process Vaginalis

Answer 14

Patent connection between tunica vaginalis and abdomen

Question 15

Hydrocele

Answer 15

Peritoneal fluid accumulation within tunica vaginalis
Scrotal swelling
Dx via trans illumination

Question 16

Lymph Drainage of Testes and Scrotum

Answer 16

Scrotum/Labia — Superficial Inguinal LNs — Lumbar LNs

Question 17

Inguinal (Hasselbach’s) Triangle boundaries

Answer 17

Medially: Rectus Abdominis m.
Laterally: Inf. Epigastric a./v.
Inferiorly: Inguinal L.

Question 18

Direct Inguinal Hernia

Answer 18

Medial to inferior epigastric a.

Peritoneum and TF OUTSIDE of spermatic cord

Question 19

Indirect Inguinal hernia

Answer 19

Lateral to inferior epigastric a.
Enters deep inguinal ring
Peritoneum inside spermatic cord