ANATOMY OF- The Inguinal Canal Flashcards
What is the FUNCTION of the Inguinal Canal?
Canal which transports the testes from the Posterior Abdominal wall to the Scrotum during embryological development of the foetus
What Structure Forms the ROOF of the Inguinal Canal?
TRANSVERSALIS FASCIA
TRANSVERSUS ABDOMINIS
INTERNAL OBLIQUE
What forms the FLOOR of the Inguinal Canal ?
INGUINAL LIGAMENT
What is the INGUINAL LIGAMENT made of?
Aponeurosis of the EXTERNAL OBLIQUE Muscle
What are the ATTACHMENTS of the INGUINAL LIGAMENT?
Anterior Superior Iliac Spine
Pubic Tubercle
What can be felt at the MID-INGUINAL Point?
FEMORAL ARTERY
What is the Landmark of the Superficial Inguinal Ring?
Lateral and Superior to the Pubic Tubercle
What is the Landmark of the Deep Inguinal Ring?
Midpoint of the Inguinal Ligament
Lateral to the Inferior Epigastric Vessels
Define an INDIRECT INGUINAL HERNIA?
An Indirect Hernia enters the Inguinal canal via the DEEP INGUINAL RING
Define a DIRECT INGUINAL HERNIA?
A Direct Hernia travels through a weakness of the POSTERIOR WALL of the INGUINAL CANAL
What is HASSELBACH’S TRIANGLE?
Describe the ANATOMY of an INDIRECT INGUINAL HERNIA?
- INDIRECT HERNIAS emerge LATERAL to the INFERIOR EPIGASTRIC ARTERY
Describe the ANATOMY of a DIRECT INGUINAL HERNIA?
-DIRECT HERNIAS emerge MEDIAL to the INFERIOR EPIGASTRIC ARTERY
What are the CONTENTS of the INGUINAL CANAL?
-SPERMATIC CORD (MALES)
-ROUND LIGAMENT (FEMALES)
-ILIOINGUINAL NERVE
- GENITAL BRANCH OF GENITOFEMORAL NERVE
What forms the POSTERIOR WALL of the INGUINAL CANAL?
TRANSVERSALIS FASCIA
What forms the ANTERIOR WALL of the INGUINAL CANAL?
EXTERNAL OBLIQUE APONEUROSIS
INTERNAL OBLIQUE MUSCLE
Which Type of INGUINAL HERNIA is more common?
INDIRECT INGUINAL HERNIA
Where does the ILIOINGUINAL NERVE Come from?
The Lumbar Plexus (L1)
What is the FUNCTION of the ILIOINGUINAL NERVE?
- 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
Where does the GENITOFEMORAL NERVE come from?
The Lumbar Plexus (L1, L2)
What are the Branches of the GENITOFEMORAL NERVE?
1) Genital Branch
2) Femoral Branch
What is the FUNCTION of the Genital Branch of the Genitofemoral Nerve?
MOTOR to the Cremasteric Muscle (MALE)
SENSORY to the skin of the MONS PUBIS (FEMALE)
What is the FUNCTION of the FEMORAL Branch of the Genitofemoral Nerve?
SENSORY to the Skin of the Groin
What are the CONTENTS of the SPERMATIC CORD?
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
