Reproductive anatomy

Question 1

Cardinal ligament

Answer 1

cervix to pelvic sidewall

uterine vessels

Question 2

Infundibulopelvic ligament

Answer 2

aka suspensory ligament of ovary

ovary to pelvic sidewall
ovarian vessels

Question 3

Ovarian ligament

Answer 3

ovary to uterus

derived from gubernaculum

Question 4

Round ligament of uterus

Answer 4

derived from gubernaculum

uterus –> inguinal canal –> labia majorum

Question 5

Broad ligament

Answer 5

uterus, fallopian tubes, ovaries to pelvic wall

contains ovarian ligament, round ligament, IP ligaments

Question 6

Pudendal N.

Answer 6

S2-S4

Sensation to perineum and genitals

motor to perineal ms. - base of penis (erection), external anal sphincter, external urethral sphincter

Damage: child birth, cyclists

• genital numbness and pain
• fecal/urinary incontinence
• ED

Pudendal nerve block - childbirth
-feel for ischial spine as landmark

Question 7

Inferior hypogastric plexus

Answer 7

pelvic plexus
autonomics - parasympathetics

to prostate plexus –> cavernous nerves –> erection
-injury during prostate surgery = ED

Question 8

Draw pelvic artery supply

Answer 8

Page 259

Internal iliac a.

1. Posterior division
   a. iliolumbar a
   b. lateral sacral a.
   c. superior gluteal a.
2. Anterior division
   a. umbilical a.
   - i. a. of ductus deferens
   - ii. superior vesical a.

b. obturator a.

c. uterine a.
- i. vaginal branch

d. inferior vesicle a.
e. vaginal a.
f. middle rectal a.
g. inferior gluteal a.

h. internal pudendal a.
- i. inferior rectal a. –> dorsal penile a.

Question 9

Left gonad venous drainage

Answer 9

drains into L renal v.
-increases venous pressure - varicoceles more common on left - bag of worms scrotum

Right side directly into IVC

Question 10

Draw cross section of penis

Answer 10

page 258

Outer dermis –>
Dartos fascia (continuous w/ collie’s fascia of perineum and scrapa’s fascia of abdominal wall) –>
Deep “Buck’s” fascia - separates corpus cavernous from corpus spongiosum

Tunica albuginea surrounds corpora cavernous and corpus spongiosum

Urethra runs through corpus spongiosum

Question 11

Sertoli cells

Answer 11

Secrete:
anti-mullerian hormone
Inhibin - negative feedback to decrease FSH secretion
Androgen binding protein (ABP) - maintains T in tubules, mature spermatocytes

Maintain blood-testis barrier

Temperature sensitive - high temp decreases inhibin, decrease sperm production

• cryptorchydism
• varicocele

Question 12

Leydig cells

Answer 12

secrete T

Located in interstitium

Question 13

Seminiferous tubules

Answer 13

meiosis
mature sperm in middle

Sertoli cells - nourish spermatozoa, activated by FSH

Spermatogonia - outer, line tubules