Block 7 Anatomy Perineum Xtrnal Genital Umich W Xpl
- 1.The boundaries of the perineum include all the following except:
- A.
Ischiopubic rami
- B.
Ischial tuberosity
- C.
Tip of the coccyx
- D.
Sacrotuberal ligament
- E.
Sacrospinal ligament
- 2.A condensation of fibrous tissue in the female located at the center of the posterior border of the perineal membrane is the:
- A.
Frenulum
- B.
Posterior labial commissure
- C.
Perineal body
- D.
Anococcygeal ligament
- E.
Pubovesical ligament
- 3.The artery which supplies blood to the major erectile body in both the male and female is the:
- A.
Artery of the bulb
- B.
Dorsal artery of the penis/clitoris
- C.
Deep artery of the penis/clitoris
- D.
Posterior labial/scrotal artery
- E.
Superficial external pudendal artery
- 4.The vestibular bulbs/bulb of the corpus spongiosum are firmly attached to the:
- A.
Perineal membrane
- B.
Superior pubic rami
- C.
Ischiopubic rami
- D.
Pubic symphysis
- E.
Ischial tuberosities
- 5.The part of the male reproductive tract which carries only semen within the prostate gland is the:
- A.
Prostatic urethra
- B.
Membranous urethra
- C.
Seminal vesicle
- D.
Ductus deferens
- E.
Ejaculatory duct
- 6.Which of the following developmental processes is least likely to be involved in the differentiation of male external genitalia from the indifferent state?
- A.
Descent of the gonads into the labio-scrotal folds
- B.
Fusion of the urogenital folds
- C.
Elongation of the phallus
- D.
Formation of new erectile bodies
- 7.An intrahepatic blockage of the portal venous outflow may cause intestinal blood to drain via portal-systemic anastomoses into the:
- A.
Superior gluteal vein
- B.
Middle rectal vein
- C.
Splenic vein
- D.
Renal vein
- E.
Inferior phrenic vein
- 8.What part of the ischioanal (ischiorectal) fossa extends deep to the sacrotuberal ligament?
- A.
Anterior recess
- B.
Genital hiatus
- C.
Posterior recess
- D.
Pudendal canal
- 9.The perineum is bounded by all of the following skeletal elements except:
- A.
Coccyx
- B.
Ischiopubic ramus
- C.
Spine of ischium
- D.
Symphysis pubis
- 10.A 6 mo. old male was brought to the pediatric clinic by his parents because of leakage of urine from the ventral surface of his penis. This congenital condition, hypospadias, is due to incomplete ventral closure of a component of the penis. Which of the below structures would be partially open for urine to take such a course?
- A.
Shaft of corpus cavernosum
- B.
Membranous urethra
- C.
Glans
- D.
Shaft of corpus spongiosum
- 11.During childbirth a bilateral pudendal nerve block may be performed to provide anesthesia to the majority of the perineum and the lower one fourth of the vagina. To do this an anesthetic agent is injected near the pudendal nerve as it passes from the pelvic cavity to the perineum. The physician inserts a finger into the vagina and presses laterally to palpate what landmark?
- A.
Arcus tendineus levator ani
- B.
Coccyx
- C.
Ischial spine
- D.
Lateral fornix
- E.
Obturator foramen
- 12.During a vaginal delivery, a surgeon performed median episiotomy in which he cut too far (i.e., through the perineal body into the structure immediately posterior). Which perineal structure did he cut?
- A.
Bulbospongiosis muscle
- B.
External anal sphincter muscle
- C.
Ischiocavernosis muscle
- D.
Sacrospinous ligament
- E.
Sphincter urethrae
- 13.During a prostatectomy, the surgeon attempts to protect the prostatic plexus of nerves which contains nerve fibers that innervate penile tissue to cause erection. From which nerves do these fibers originate?
- A.
Deep perineal
- B.
Dorsal nerve of the penis
- C.
Genitofemoral
- D.
Pelvic splanchnics
- E.
Pudendal
- 14.If the venous drainage of the anal canal above the pectinate line is impaired in a patient with portal hypertension, there may be an increase in blood flow downward to the systemic venous system via anastomoses with the inferior rectal vein, which is a tributary of the:
- A.
External iliac
- B.
Inferior gluteal
- C.
Inferior mesenteric
- D.
Internal iliac
- E.
Internal pudendal
- 15.A patient complains of a boil located on her labia majora. Lymphatic spread of the infection would most likely enlarge which nodes?
- A.
Lumbar nodes
- B.
Sacral nodes
- C.
External iliac nodes
- D.
Superficial inguinal nodes
- E.
Internal iliac nodes
- 16.In order to perform an episiotomy prior to childbirth, the perineum must be anesthetized. By inserting a finger in the vagina and pressing laterally, what palpable bony landmark can be used as the posterior limit of the pudendal canal?
- A.
Coccyx
- B.
Ischial tuberosity
- C.
Ischiopubic ramus
- D.
Obturator groove
- E.
Ischial spine
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