Inguinal Canal Weakness

Question 1

Causes

Answer 1

1. Presence of internal Inguinal and external Inguinal rings
2. Presence of area in canal anterior wall formed of external oblique aponeurosis only and area in canal posterior wall formed by fascia transversalis only
3. Spermatic cord passes between abdominal wall layers

Question 2

Normally compensated by

Answer 2

1. Shutter mechanism
2. Valvular mechanism
3. Increased intra-abdominal pressure
4. Superficial ring
5. Deep ring
6. Intercrural fibers
7. Cremasteric mechanism

Question 3

Shutter mechanism

Answer 3

During standing, coughing or straining, contraction of internal abdominal oblique lower fibers decreases its concavity (they become more straight) leading to closure of Inguinal canal around spermatic cord

Question 4

Valvular mechanism

Answer 4

Inguinal canal is oblique so internal or external rings are not opposite each other

Question 5

Increased intra-abdominal pressure

Answer 5

Forces canal posterior against anterior wall to close external ring

Question 6

Superficial ring

Answer 6

Is compensated by posterior wall strong part conjoint tendon and Inguinal ligament reflected part

Question 7

Deep ring

Answer 7

Compensated by anterior wall strong part, internal oblique fleshy lower fibers

Question 8

Intercrural fibers

Answer 8

Prevent separation of external Inguinal ring crura

Question 9

Cremasteric mechanism

Answer 9

Contraction of Cremasteric muscle during increased intra-abdominal pressure leads to testis pull up in attempt to close external Inguinal ring