male reproductive system Flashcards

1
Q

parts of penis

A
  • paired corpora cavernosa
  • corpus spongiosum
  • glans penis
  • crura and bulb
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2
Q

blood supply to penis

A
  • internal pudendal
  • external pudendal (skin)
  • dorsal arteries
  • deep dorsal vein
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3
Q

blood supply to scrotum

A

ant: external pudendal
post: internal pudendal

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4
Q

nerve innervation to scrotum

A

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

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5
Q

where does the left tesitcular vein drain

A

left renal vein

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6
Q

nerve innervation of prostate gland

A

symp: inferior hypogastric pleuxs
parasymp: pelvic splanchnic

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7
Q

route of sperm

A

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

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8
Q

steps of erection

A
  • parasymp stim of cavernous verse from prostatic nerve plexus
  • bulbospongiosa and ischiocavernosa contract at base impedeing blood flow
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9
Q

steps of emission

A

delivery of semen to prostatic urethra by ductus deferens

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10
Q

steps of ejaculation

A
  • closure of internal urethral sphincter at neck of bladder
  • contraction of smooth muscle in prostate and urethra
  • contraction of bulbospongiosa muscle
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11
Q

what makes up the spermatic cord

A
  • ductus deferens
  • testicular artery
  • pampiniform plexus
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12
Q

where does the prostatic venous plexus drain

A
  • internal iliac vein

- possibly vertebral venous plexus

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