436.Which of the following arteries may occasionally arise as a branch of
the external iliac artery or inferior epigastric artery instead of as a branch of
the internal iliac artery?
a. Internal pudendal artery
b. Obturator artery
c. Superior gluteal artery
d. Umbilical artery
e. Uterine artery
437.A couple comes to your office because they have been unable to con-
ceive a child after 1 year of trying. You examine the man and notice a dark-
ish mass and fullness of the left scrotum/spermatic cord compared to the
smaller right scrotum/spermatic cord. You suggest he follow up with an
urologist because you suspect which of the following?
a. Undiagnosed cryptorchidism of the right testicle
b. Acquired varicocele
c. Acquired left femoral hernia
d. Acquired right direct femoral hernia
e. Congenital absence of the pampiniform plexus on the right side
438.Which of the following is one of the roles of the sympathetic chain in
the pelvis?
a. Bladder contraction
b. Cutaneous function (sudomotor, vasomotor, pilomotor)
c. Erection in males
d. Erection in both male and female
439.Both the autonomic and vascular systems need to function properly
for successful male sexual function. Which of the following statements
concerning erection, emission, and ejaculation in the male is correct?
a. Contraction of the internal urethral sphincter is under control of the parasym-
pathetic nervous system
b. The parasympathetic nerves stimulate closure of helical arteries
c. Sympathetic neurons stimulate the helicine arteries to dilate and increase blood
flow to the corpora cavernosum
d. Parasympathetic innervation stimulates emission of seminal fluid
e. Contraction of the bulbospongiosus muscles impedes the drainage of blood
from the corpus spongiosum
540 Anatomy, Histology, and Cell Biology