Boundaries of the inguinal canal

Internal abdominal oblique and the transverse abdominus muscles (Figure III-3-4). Anterior Wall

Aponeurosis of the external abdominal oblique and the internal abdominal oblique muscle. Floor

Inguinal ligament (part of the aponeurosis of the external oblique). Posterior Wall

Transversalis fascia (weak area) and conjoined tendon.

The conjoined tendon reinforces the medial part of the posterior wall. ■ The conjoined tendon is formed by the aponeuroses of the internal oblique and transversus ; abdominus muscles.

Deep inguinal ring

, Inferior epigastric artery & vein

External oblique fascia External spermatic fascia

Internal oblique muscle Cremaster muscle and fascia

Superficial inguinal ring

Transversalis fascia internal spermatic fascia

External oblique fascia External spermatic fascia

Internal oblique muscle Cremaster muscle and fascia

Deep inguinal ring

, Inferior epigastric artery & vein

Superficial inguinal ring

Figure II 1-3-4. Inguinal Canal

Testes Peritoneum

Testes Peritoneum

Figure 111-3-5. Descent of the Testes

Figure 111-3-5. Descent of the Testes

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