male reproductive system

Question 1

parts of penis

Answer 1

• paired corpora cavernosa
• corpus spongiosum
• glans penis
• crura and bulb

Question 2

blood supply to penis

Answer 2

• internal pudendal
• external pudendal (skin)
• dorsal arteries
• deep dorsal vein

Question 3

blood supply to scrotum

Answer 3

ant: external pudendal
post: internal pudendal

Question 4

nerve innervation to scrotum

Answer 4

ant: ilioinguinal and genital branch of genitofemoral
post: posterior scrotal

Question 5

where does the left tesitcular vein drain

Answer 5

left renal vein

Question 6

nerve innervation of prostate gland

Answer 6

symp: inferior hypogastric pleuxs
parasymp: pelvic splanchnic

Question 7

route of sperm

Answer 7

seminiferous tubules in testes -> epididymis -> ductus deferens -> prostate -> ejaculatory duct -> prostatic urethra -> membranous urethra -> penil/spongy urethra

Question 8

steps of erection

Answer 8

• parasymp stim of cavernous verse from prostatic nerve plexus
• bulbospongiosa and ischiocavernosa contract at base impedeing blood flow

Question 9

steps of emission

Answer 9

delivery of semen to prostatic urethra by ductus deferens

Question 10

steps of ejaculation

Answer 10

• closure of internal urethral sphincter at neck of bladder
• contraction of smooth muscle in prostate and urethra
• contraction of bulbospongiosa muscle

Question 11

what makes up the spermatic cord

Answer 11

• ductus deferens
• testicular artery
• pampiniform plexus

Question 12

where does the prostatic venous plexus drain

Answer 12

• internal iliac vein

- possibly vertebral venous plexus