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Histology Post Midterm > Male Reproductive System II > Flashcards

Male Reproductive System II Flashcards

1
Q

where are the tubuli recti?

A

mediastinum testis

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2
Q

what do the tubule recti convey?

A

spermatozoa form the seminiferous tubules to the rete testis

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3
Q

what is the lumen of the tubule recti lined by?

A

sertoli cells – which later changes to a simple cuboidal epithelium (Mv + single flagella)

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4
Q

where is the rete testis located?

A

mediastinum testis

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5
Q

what is the rate testis and what does the rete testis do?

A
  • labyrinth plexus of anastomosing channels

- connect the tubuli recti with the ductuli efferentes

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6
Q

what type of epithelium lines the rete testis?

A

simple cuboidal epithelium (+ single flagellum)

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7
Q

what is the ductuli efferentes?

A

10-20 tubules leading from the rete testis to the ductus epididymis

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8
Q

what lines the ductuli efferentes?

A

pseudoctratified columnar epithelium - alternating clusters of non-ciliated cuboidal and ciliated columnar

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9
Q

what are the characteristics of the cuboidal cells of the ductuli efferentes?

A

Mv
lysosomal granules
function to reabsorb fluid from the semen

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10
Q

what is the function of the ciliated columnar cells of the ductuli efferentes?

A

transporting nonmotile spermatozoa toward the epididymis

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11
Q

where is the circular smooth muscle found in the ductuli efferentes found?

A

under the basal lamina surrounding the ductuli efferentes epithelium

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12
Q

what are the excretory genital ducts?

A 
ductus epididymis
ductus deferens (vas deferens)
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13
Q

what are the two major parts of the ductus deferens?

A

ampulla

ejaculatory duct

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14
Q

what are the intratesticular genital ducts?

A

tubuli recti
rete testis
ductuli efferentes

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15
Q

what type of epithelium lines the lumen of the ductus epididymis? What type of cells make up the epithelium?

A

pseudostratified columnar epithelium

basal and principle cells

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16
Q

what surrounds the ductus epididymis?

A

CT containing blood vessels

  • there is a basal lamina
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17
Q

what are the subdivisions of the ductus epididymis?

A

head, body, tail

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18
Q

What is the function of basal cells?

A

precursor to (columnar) principle cells

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19
Q

what do principle cells have on their luminal surface?

A

stereocilia

  • also have SERIOUS organelles
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20
Q

what do principle cells secrete?

A

glycerophosphocholine

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21
Q

what is glycerophosphocholine?

A

substance that aids in the maturation of sperm cells - surface associated decapitation factor inhibits capacitation

22
Q

what is capacitiation?

A

process when sperm is able to fertilize the ovum - although it beings in the epididymis, it isn’t complete until the sperm reaches the oviduct

23
Q

what type of epithelium make up the epithelium of the ductus deferens?

A

pseudostratified epithelium + stereocilia

24
Q

what are the smooth muscle layers of the ductus deferens?

A

inner longitudinal
middle circular
outer longitudinal

25
Q

what is the ampulla?

A

dilated portion of ductus deferens

leads directly to prostate gland

26
Q

what does the distal end of the ampulla of the ductus deferens receive?

A

seminal vesicle = forming the ejaculatory duct that enters the prostate gland

27
Q

what does the ejaculatory duct lack?

A

muscular wall

28
Q

what does the ejaculatory duct terminate to?

A

slit on the colliculus seminal is - in prostatic urethra

29
Q

what are the accessory genital glands and what is their primary function?

A

seminal vesicles
prostate gland
bulbourethral glands

-produce most of the seminal fluid

30
Q

where do the ducts of the seminal vesicle join just before entering the prostate gland?

A

ductus deferens

31
Q

what type of epithelium lines the seminal vesicles?

A

pseudostratified columnar epithelium - with low columnar and cuboidal basal cells

has a LP + adventitia

32
Q

what is the height of the cuboidal basal cells of the seminal vesicles dependent on?

A

testosterone

33
Q

what do the columnar cells of the seminal vesicles contain?

A

yellow lipochrome pigment granules and secretory granules

34
Q

what is the secretory product of the seminal vesicles composed of?

A

yellow, viscous fluid rich in fructose + other.. - constitutes 70% of the ejaculate

35
Q

what makes up the prostate gland?

A

30-50 branched tubuloalveolar glands that empty their contents into the prostatic urethra - via excretory ducts

36
Q

what are the layers of the prostate gland?

A

central, transitional, peripheral - all around urethra

37
Q

what divides the prostate into lobes?

A

stroma from the capsule

38
Q

what type of epithelium lines the prostate glands?

A

simple or pseudostratified columnar epithelium

39
Q

what is another name for prostatic concretions?

A

corpora amylacea

40
Q

what are prostatic concretions composed of and what are they?

A

composed of glycoprotein - may become calcified and their numbers increase with age

41
Q

what influences the secretion from the prostate gland?

A

dihydrotestosterone

42
Q

what is the secretion of prostate gland composed of?

A

whitish, thin fluid

proteolytic enzymes, citric acid, acid phosphatase and lipids

43
Q

what does PSA stand for and what is it?

A

prostate - specific - antigen

induces elevated acid phosphatase blood levels = prostatic carcinoma

44
Q

what are the bulbourethral glands (Cowper’s glands) located?

A

next to membraneous urethra

45
Q

what do the bulbourethral glands (Cowper’s glands) do?

A

empty their clear secretion into the lumen to lubricate it

46
Q

what type of epithelium lines the bulbourethra glands (Cowper’s glands)?

A

simple cuboidal or columnar epitheium

47
Q

what does the hypodermis of the penis contain?

A 
smooth muscle (prominent)
no adipose tissue!
48
Q

what happens to the vascular spaces during erection?

A

engorged = turgid/swollen

49
Q

what is the singular erectile body that surrounds the spongy urethra?

A

corpus spongiosum

50
Q

what is the difference between copora cavernosa and corpus spingiosum?

A

corpus spongiosum trabeculae has more elastic fibers and only a few smooth muscles
vascular spaces are uniform - in corpus cavernosum - the vascular spaces decides in size towards periphery

51
Q

what is the gland of Littre?

A

mucus secreting gland present throughout the length of the penile urethra

52
Q

the glans penis is the terminal end of what?

A

corpus spingiosum

Histology Post Midterm (19 decks)

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