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Endo/Repro Wk 3 > Male Reproductive Histology > Flashcards

Male Reproductive Histology Flashcards

1
Q

Tunica albeginea

A

outer, large capsule of testis

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2
Q

Tunica vaginalis

A

embryological remnant

superficial to tunica albeginea

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3
Q

What is the area where the sperm mature etc called

A

seminiferous tubules

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4
Q

Spermatigonia
1˚ or 2˚ spermatocytes
Spermatids
Spermatozoa

A

order of maturation in seminiferous tubule

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5
Q

Order of maturation and descriptions in seminiferous tubule

A 
spermatagonia: bottom layer
1˚ spermatocytes: look granulated and wacky
2˚ spermatocytes: not visible
Spermatids: circular
Spermatozoa: with tails
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6
Q

How long do spermatocytes last before they enter meiosis I

A

22 days

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7
Q

Spermiogenesis

A

spermatids –> spermatozoa

describes last step only

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8
Q

Spermatids –> spermatozoa

what is that called

A

spermiogenesis

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9
Q

Sertoli cells
histo
function

A

oval w/ distinct nucleolus

function: blood-testes barrier, phagocytose residual bodies

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10
Q

Where are Sertoli cells found

A

in seminiferous tubules

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11
Q

Sertoli cells vs Leydig cells

A

sertoli: in seminiferous tubules
-blood-testes barrier
-phagocytose residual bodies
Leydig cells
-produce testosterone
-found in interstitial space between seminiferous tubule networks

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12
Q

Sertoli cell receptors

A

FSH

  • produce androgen binding protein
  • produce inhibin
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13
Q

What occurs during spermiogenesis

A

spermatids –> spermatozoa

  • cap is added
  • acrosome added
  • residual body shed
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14
Q

Where are the mitochondria found in the spermatozoa

A

in the middle piece

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15
Q

Components of interstitial tissue between seminiferous tubules

A

Leydig cells

+other CT stuff

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16
Q

Leydig cells

  • histology
  • function
A

large, eosinophlic w/ large, round nuclei

produce testosterone

17
Q

Undescended testicle

what does it affect

A

affects Sertoli cells: spermatogenesis

not Leydig cells: testosterone production

18
Q

LH receptors in testis

A

on Leydig cells: testosterone release

estrogen release in women

19
Q

FSH receptors in testis

A

on Sertoli cells

-promote spermatogenesis

20
Q

Labyrinth excretory duct

A

rete testis

-simple cuboidal

21
Q

Conical spiraling excretory ducts from post aspect of testis

A

efferent ducts

-simple columnar

22
Q

How to identify efferent ducts

A

alternating mix of tall and short cells

  • tall: ciliated
  • short: microvilli for absorption
23
Q

Tall and short cells are found where in excretory duct system

A

efferent ducts

  • tall: ciliated
  • short: microvilli for absorption
24
Q

How to differentiate efferent ducts from epididymus

A

efferent: tall and short cell
epididymus: very smooth

25
Q

Defining feature of vas

A

thick muscular wall

star shaped

26
Q

Function of seminal vesicle

A

secrete fluid w/ fructose

-fuel for sperm

27
Q

What type of glandular tissue proliferates in BPH

A

mucosal cells

smallest normally, become problem easily in BPH

28
Q

Concretions develop w/ age in which tissue type

A

prostate tissue

29
Q

Bulbourethral glands secrete what product

A

secrete lubricating material

30
Q

Corpus cavernosa

function

A

collapsed in flaccid penis

becomes engorged w/ blood in erection

31
Q

Vein in penis

A

deep dorsal vein

32
Q

Penile innervation

A

parasympathetic
-allows relaxation of arterioles, collection of blood in corpus cavernosa
-venules compressed to decrease loss of blood
sympathetic
-ejaculation
-detumescence, regain tone

33
Q

Male urethra epithelium

  • prostatic
  • membranous
  • penile
A
  • prostatic: transitional to stratified columnar
  • membranous: stratified columnar
  • penile: stratified columnar
34
Q

Function of the scrotum

A

thermoregulation

Endo/Repro Wk 3 (9 decks)

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