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ANATOMY > Lecture 31: Pelvis and Perineum IV > Flashcards

Lecture 31: Pelvis and Perineum IV Flashcards

1
Q

what 2 things do the testes do

A

spermatogenesis and steroidogenesis

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2
Q

what is the outer covering of testes

A

visceral vaginal tunic

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3
Q

what is 2

A

capsule (tunica albuginea is underneath)

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4
Q

what is 3, what is 4?

A

3 = parenchyma
4 = mediastinum testis

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5
Q

what is 5

A

seminiferous tubules

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6
Q

what is 6?

A

interstitial tissue

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7
Q

what is 7?

A

rete testis

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8
Q

what is 8?

A

efferent ducts

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9
Q

what is the blood supply to the testes

A

testicular artery and vein

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10
Q

what is the function of the epididymis?

A

mature (head and body) and store sperm (tail)

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11
Q

what is 1

A

head (caput)

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12
Q

what is 2

A

body (corpus)

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13
Q

what is 3

A

tail (cauda)

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14
Q

what is 4

A

efferent ducts

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15
Q

what is 5

A

ductus deferens

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16
Q

what is 6

A

ligament of epididymis tail

17
Q

the body of the epididymis is always located at the ____ side of ductus deferens

A

lateral

18
Q

what is 1?

A

ductus deferens and nerve

19
Q

what is 5

A

testis

20
Q

what is 6

A

epididymis

21
Q

what is 6

A

scrotal septum

22
Q

what is the blood supply to the scrotum

A

external pudendal a

23
Q

what is the innervation to the scrotum

A

-lumbar nerves
-iliohypogastric nerve
- ilioinguinal nerve
- genitofemoral nerve

24
Q

what lymph nodes do the spermatic cord and scrotum drain to

A

deep and superficial inguinal nodes

25
Q

what structures are responsible for the cooling of the testes, for the warming?

A

cooling - pampiniform plexus & thin scrotal skin

warming - dartos and cremaster

26
Q

what are the two phases of testicular descent and what is it caused by (2 things)

A

abdominal and extra-abdominal descent

caused by gubernaculum and male hormones

27
Q

what is gubernaculum

A

a band of mesenchymal tissue

28
Q

what occurs in intra-abdominal descent phase

A

reduction in the length of the gubernaculum

dependent more on INSL3 (insulin like peptide 3)

29
Q

what occurs in extra-abdominal descent phase

A

an increase in the thickness of the gubernaculum and a reduction in the length again

more dependent on androgens

30
Q

what does the visceral vaginal tunic form

A

spermatic cord

31
Q

what is found in the spermatic cord

A
  • ductus deferens and nerve
  • testicular blood and lymph vessels
  • visceral vaginal tunic
32
Q

what is the cremaster an extension of

A

the internal abdominal oblique

33
Q

cremaster origin

A

internus abdominis at the inguinal ring

34
Q

what is the action of the cremaster?

A

raises the testes during cold weather, arousal, copulation and fighting

ANATOMY (58 decks)

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