1
ANTERIOR ABDOMINAL WALL
PART 3
INGUINAL CANAL
MARS Learning Centre
1
, INGUINAL CANAL
MUSCULOAPONEUROTIC CANAL
Oblique passage in the lower anterior abdominal wall situated just above the medial half of
inguinal ligament
Weakest area of abdominal wall
Results in inguinal hernia
SITUATION: Above the medial end of inguinal ligament
EXTENT: Deep inguinal ring to superficial inguinal ring
LENGTH: 4cm
Directed downwards forwards and medially
2
, DEEP INGUINAL RING
Is an oval opening in the fascia transversalis
Situated 1.2 cm above the midinguinal point and lateral to the stem of INFERIOR EPIGASTRIC
ARTERY.
RELATIONS OF DEEP INGUINAL RING
MEDIALLY : Inferior epigastric artery
ABOVE : Arched fibres of transversus abdominis
FRONT AND LATERALLY : Internal oblique
3
ANTERIOR ABDOMINAL WALL
PART 3
INGUINAL CANAL
MARS Learning Centre
1
, INGUINAL CANAL
MUSCULOAPONEUROTIC CANAL
Oblique passage in the lower anterior abdominal wall situated just above the medial half of
inguinal ligament
Weakest area of abdominal wall
Results in inguinal hernia
SITUATION: Above the medial end of inguinal ligament
EXTENT: Deep inguinal ring to superficial inguinal ring
LENGTH: 4cm
Directed downwards forwards and medially
2
, DEEP INGUINAL RING
Is an oval opening in the fascia transversalis
Situated 1.2 cm above the midinguinal point and lateral to the stem of INFERIOR EPIGASTRIC
ARTERY.
RELATIONS OF DEEP INGUINAL RING
MEDIALLY : Inferior epigastric artery
ABOVE : Arched fibres of transversus abdominis
FRONT AND LATERALLY : Internal oblique
3
