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Jason's Reproduction Block > Histology - Male > Flashcards

Histology - Male Flashcards

1
Q

testis is surround by? which is also surrounded by?

A 
Tunica albuginea (CT)
tunica vaginalis
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2
Q

septa from tunica albuginea divides testis into?

A

250 incomplete compartments/lobule

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3
Q

how are the seminiferous tubules within testis connected in different compartments?

A

via rete testis»efferent ductules» epididymis»vas deferens»urethra

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4
Q

each lobule has how many seminiferous tubules? length?

A

1-4 convoluted (50cm)

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5
Q

Tunica propria in seminiferous tubules lacks? contains instead?

A

lacks fibroblasts

contains smooth muscles

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6
Q

what cells are within the tunica propria of seminiferous tubules? purpose?

A

Leydig Cells for testosterone production

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7
Q

seminiferous tubules has what kind of epithelium?

A

stratified epithelium full of stem cell spermatogonium

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8
Q

where are sertoli cells?

A

support cells that are between and inter-digitating between the spermatogonium developing

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9
Q

what is located at base of seminiferous tubules stratified epithelium? purpose?

A

peritubular (myoid) cells of the tunica propria. peristaltic movement to move sperm

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10
Q

when are Leydig cells active?

A

first 5 months of life

inactive until puberty

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11
Q

what does the tubuli recti connect?

A

the seminiferous tubules to the rete testis

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12
Q

what is tubuli recti contain? cell type?

A

only sertoli cells (simple ciliated cuboidal)

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13
Q

dustus deferens embryonic origins? female equivalent?

A

mesonephric Wolffian duct

females forms fallopian tubes

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14
Q

around 20 surviving mesonephric tubles form what? what does it connect?

A

efferent ductules that connect the rete testis to the single epididymis

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15
Q

what are efferent ductules lined with? surrounded by?

A

ciliated pseudostratified columnar epithelium surrounded by smooth muscle

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16
Q

3 main functions of epididymis?

A
  1. mature sperm
  2. decapacitation (ihibitory factors secreted)
  3. absorb testicular fluid/debris cleaning
17
Q

ductus deferens runs into abdo via?

A

inguinal canal/spermatic cord

18
Q

ductus deferens enters prostate and becomes?

A

ejaculatory duct

19
Q

ductus deferens lined with

A

ciliated pseudostratified columnar epithelium

20
Q

ductus deferens muscular?

A

yes thick smooth muscle coat

21
Q

ejaculatory duct muscular?

A

Nope

22
Q

seminal vesicles secrete:

A

fructose
prostaglandins
alkaline fluid

23
Q

how much of semen from seminal vesicles?

A

50% volume

24
Q

prostate how many glands?

A

30-50 tubuloalveolar glands into urethra and prostatic sinuses

25
Q

describe urethra in prostate?

A

branching prostatic sinuses

26
Q

3 glands in prostate:

A
  1. main glands drain via long ducts
  2. submucosal drain into prostatic sinuese
  3. tiny mucosal glands open into urethra
27
Q

4 zones of prostate:

A
  1. central -surround ejaculatory
  2. peripheral - surround central
  3. transitional -surrounds urethra and periurethral zone
  4. Periurethral zone - adjacent to urethra
28
Q

describe prostatic epithelium

A

heterogenous: columnar, cuboidal, psudostratified

29
Q

describe the septa in the prostate

A

CT containing abundant smooth muscle

30
Q

what are prostatic concretions?

A

normal with aging: accumulation of protein, calcium phosphase, cholesterol and debris

31
Q

prostate adds what to semen?

A
  1. acid phosphatase
  2. fibrolysin (frees sperm once in cervix)
  3. coagulating factors (cause ejaculate to clot to help stay in vagina)
32
Q

three masses of cavernus tissue in penis surrounded by 3 things?

A
  1. smooth muscle
  2. CT
  3. tunica albuginea (elastic capsule)
33
Q

parasympathetic stim of penis does what? which Neurotransmitters?

A

relaxes cavernosal smooth muscle and dilates arteries (via ACh and NO

34
Q

how does blood stay in erect penis?

A

cavernous bodies compress veins to restrict it

35
Q

what is detumescence? how activated?

A

sympathetic stim restric inflow and contract cavernosal smooth muscle to empty blood

36
Q

body of clitoris contains?

A

bilateral cavernous tissue again surrounded by tunica albuginea

37
Q

where is crus of clitoris

A

extends inferiorly along pelvis

38
Q

blubs of clitoris function?

A

unknown, no male homologue

Jason's Reproduction Block (22 decks)

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