The following statement(s) is/are true concerning neurovascular anatomic structures in the inguinal region.
A. The inferior epigastric artery and vein run upward in the preperitoneal fat posterior to the transversalis fascia close to the lateral margin of the internal inguinal ring
B. The iliohypogastric and ilioinguinal are motor and sensory nerves in the inguinal region which lie beneath the external oblique aponeurosis
C. The ilioinguinal nerve runs anterior to the spermatic cord in the inguinal canal and at the superficial inguinal ring, branches into the sensory supply to the pubic region and the upper scrotum or labium majoris
D. The genital branch of the genitofemoral nerve is a sensory nerve only to the upper thigh and genital area
E. direct inguinal hernia arises superior and medial to the inferior epigastric vesssels
The answer
is. B. The iliohypogastric and ilioinguinal are motor and sensory nerves in the
inguinal region which lie beneath the external oblique aponeurosis
C. The
ilioinguinal nerve runs anterior to the spermatic cord in the inguinal canal
and at the superficial inguinal ring, branches into the sensory supply to the
pubic region and the upper scrotum or labium majoris
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. 