1.3 The Inguinal Canal Flashcards
When is the Inguinal Canal formed?
During the relocation of the Gonads during Foetal Development
What is the Inguinal Canal formed from?
Layers of the Anterior Abdominal wall, as these layers push through obliquely
How long is the Inguinal Canal (approximately)?
4cm
Where does the Inguinal Canal lie in relation to the Inguinal Ligament?
Parallel to and above it
What 2 bony points of the hip bone is the Inguinal Ligament attached to?
Superolaterally - The Anterior Superior Iliac Spine
Inferomedially - The Pubic Tubercle
What are the boundaries of the Inguinal Canal?
- The Anterior Wall
- The Posterior Wall
- The Roof
- The Floor
What forms the Anterior Wall of the Inguinal Canal?
The Aponeurosis of the External Oblique, reinforced laterally by the Internal Oblique
What forms the Posterior Wall of the Inguinal Canal?
The Transversalis Fascia
What forms the Roof of the Inguinal Canal?
- The Transversalis Fascia
- The Internal Oblique
- The Transverse Abdominis
What forms the Floor of the Inguinal Canal?
The Inguinal Ligament thickened by the Lacunar Ligament
What is found in the Medial 1/3 of the Anterior Wall of the Inguinal Canal?
The Superficial Inguinal Ring
What is found in the Lateral 1/3 of the Anterior Wall of the Inguinal Canal?
The Muscular Part of the Internal Oblique
What is found in the Medial 1/3 of the Posterior Wall of the Inguinal Canal?
The Conjoint Tendon - An Inguinal Falx reflected part of the Inguinal ligament
What is found in the Lateral 1/3 of the Posterior Wall of the Inguinal Canal?
The Deep Inguinal Ring
What is the Inguinal Ligament?
A “Rolled Up” Portion of the External Oblique Aponeurosis