<prompt> Length of inguinal canal2.5 cm4 cm10 cm15 cm  <response>: INGUINAL CANAL:- Oblique intermuscular passage in the lower pa of the anterior abdominal wall.Extends from deep inguinal ring to superficial.Deep ring- oval opening in fascia transversalis.1.25 cm above mid-inguinal point.Superficial ring: triangular gap in external oblique aponeurosis. Length: 4cm Directed downwards forwards and medially. BOUNDARIES:-1. Anterior wall A. To the whole extend: skinsuperficial fascia and external oblique aponeurosis.B. Lateral one third: internal oblique muscle 2. Posterior wall A. Whole extend fascia transversalis, extraperitoneal tissue, the parietal peritoneum.B. Medial two third: conjoint tendon, reflected pa of inguinal ligament. 3. Roof:arched fibres of internal oblique and transversus abdominis.4. Floor: grooved upper surface of inguinal ligament. Structures passing through:-1. Spermatic cordmales Round ligament of uterus f2. Ilioinguinal nerve. Reference: BDC 6E pg213 