ANATOMY OF- The Inguinal Canal

Question 1

What is the FUNCTION of the Inguinal Canal?

Answer 1

Canal which transports the testes from the Posterior Abdominal wall to the Scrotum during embryological development of the foetus

Question 2

What Structure Forms the ROOF of the Inguinal Canal?

Answer 2

TRANSVERSALIS FASCIA

TRANSVERSUS ABDOMINIS

INTERNAL OBLIQUE

Question 3

What forms the FLOOR of the Inguinal Canal ?

Answer 3

INGUINAL LIGAMENT

Question 4

What is the INGUINAL LIGAMENT made of?

Answer 4

Aponeurosis of the EXTERNAL OBLIQUE Muscle

Question 5

What are the ATTACHMENTS of the INGUINAL LIGAMENT?

Answer 5

Anterior Superior Iliac Spine

Pubic Tubercle

Question 6

What can be felt at the MID-INGUINAL Point?

Answer 6

FEMORAL ARTERY

Question 7

What is the Landmark of the Superficial Inguinal Ring?

Answer 7

Lateral and Superior to the Pubic Tubercle

Question 8

What is the Landmark of the Deep Inguinal Ring?

Answer 8

Midpoint of the Inguinal Ligament

Lateral to the Inferior Epigastric Vessels

Question 9

Define an INDIRECT INGUINAL HERNIA?

Answer 9

An Indirect Hernia enters the Inguinal canal via the DEEP INGUINAL RING

Question 10

Define a DIRECT INGUINAL HERNIA?

Answer 10

A Direct Hernia travels through a weakness of the POSTERIOR WALL of the INGUINAL CANAL

Question 11

What is HASSELBACH’S TRIANGLE?

Answer 11

Question 12

Describe the ANATOMY of an INDIRECT INGUINAL HERNIA?

Answer 12

• INDIRECT HERNIAS emerge LATERAL to the INFERIOR EPIGASTRIC ARTERY

Question 13

Describe the ANATOMY of a DIRECT INGUINAL HERNIA?

Answer 13

-DIRECT HERNIAS emerge MEDIAL to the INFERIOR EPIGASTRIC ARTERY

Question 14

What are the CONTENTS of the INGUINAL CANAL?

Answer 14

-SPERMATIC CORD (MALES)
-ROUND LIGAMENT (FEMALES)

-ILIOINGUINAL NERVE
- GENITAL BRANCH OF GENITOFEMORAL NERVE

Question 15

What forms the POSTERIOR WALL of the INGUINAL CANAL?

Answer 15

TRANSVERSALIS FASCIA

Question 16

What forms the ANTERIOR WALL of the INGUINAL CANAL?

Answer 16

EXTERNAL OBLIQUE APONEUROSIS

INTERNAL OBLIQUE MUSCLE

Question 17

Which Type of INGUINAL HERNIA is more common?

Answer 17

INDIRECT INGUINAL HERNIA

Question 18

Where does the ILIOINGUINAL NERVE Come from?

Answer 18

The Lumbar Plexus (L1)

Question 19

What is the FUNCTION of the ILIOINGUINAL NERVE?

Answer 19

• MALE: ANTERIOR SCROTAL NERVE
  SENSATION to the Root of the Penis and scrotum

-FEMALE: ANTERIOR LABIAL NERVE
SENSATION to the Mons Pubis and Labia Majorum

Question 20

Where does the GENITOFEMORAL NERVE come from?

Answer 20

The Lumbar Plexus (L1, L2)

Question 21

What are the Branches of the GENITOFEMORAL NERVE?

Answer 21

1) Genital Branch

2) Femoral Branch

Question 22

What is the FUNCTION of the Genital Branch of the Genitofemoral Nerve?

Answer 22

MOTOR to the Cremasteric Muscle (MALE)

SENSORY to the skin of the MONS PUBIS (FEMALE)

Question 23

What is the FUNCTION of the FEMORAL Branch of the Genitofemoral Nerve?

Answer 23

SENSORY to the Skin of the Groin

Question 24

What are the CONTENTS of the SPERMATIC CORD?

Answer 24

3 ARTERIES:
- Testicular Artery
-Artery to the Vas
-Artery to the Cremaster

3 NERVES:
-Genital branch of the Genitofemoral nerve
-Cremasteric Nerve
-Sympathetic Nerve

3 OTHERS:
- Ductus Deferens
-Papiniform Plexus of veins
-Lymphatics