Surgery MCQ Answer 52

Answer: b, c

Arising anteriorly from the external iliac artery, the inferior epigastric artery with its accompanying vein runs obliquely medially and upward in the preperitoneal fat, posterior to the transversalis fascia and close to the inferior margin of the internal inguinal ring. Inguinal hernias arising superior to the inferior epigastric vessels are indirect inguinal hernias, whereas those arising inferior to the vessels are direct inguinal hernias. The iliohypogastric and ilioinguinal nerves are motor and sensory nerves to the muscles and skin of the inguinal region. The nerves penetrate the transversus abdominis muscle at the point above the middle of the iliac crest, lie below the internal oblique muscle up to the point just medial and superior to the anterior superior iliac spine, and then penetrate the internal oblique muscle and lie below the external oblique aponeurosis. The ilioinguinal nerve runs anterior to the spermatic cord in the inguinal canal and at the superficial inguinal ligament, branches into sensory supply to the pubic region and the upper scrotum or labium majoris. The genital branch of the genitofemoral nerve perforates the transversalis fascia usually just inferior to the internal ring. It courses along the posterior surface of the spermatic cord and supplies motor fibers to the cremaster muscle. At the superficial inguinal ring, it divides to provide sensory innervation to the scrotum and medial aspect of the upper thigh.

Category: Surgery MCQs