<prompt> Anterior wall of inguinal wall is formed by:External obliqueTransversus abdominisPyramidalisConjoint tendon  <response>: Ans. A. External obliqueThe inguinal canals are situated just above the medial half of the inguinal ligament. The canals transmit the ilioinguinal nerve and the spermatic cord in men or the round ligament in women. The canals are approximately 3.75 to 4 cm long.Boundaries-a. Anterior wall:aponeurosis of external obliquefleshy part of internal oblique lateral third of canal onlyb. Posterior wall:transversalis fasciaconjoint tendon medial third of canal onlyc. Superior wall roof:Musculoaponeurotic arches of internal oblique and transverse abdominald. Inferior wall floor:inguinal ligamentlacunar ligament medial third of canal only 