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Josh Endo week 3 > Monday - Male Reproductive Histo - Aubie Aubie > Flashcards

Monday - Male Reproductive Histo - Aubie Aubie Flashcards

1
Q

Testis function: 2

A

Exocrine - spermatozoa

Endocrine - testosterone, inhibin

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2
Q

Excretory Ducts function: 2

A

transport - spermatozoa

storage - secretory products

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3
Q

Accessory glands functions

A

fluid production

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4
Q

Penis funtions

A

pee + sex

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5
Q

Scrotum functions

A

thermoregulation

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6
Q

Testis
capsule called?
emryonic sac called?
divisions of tubules called?

A

Tunica albuginea - capsule
Tunica vaginalis - parietal and visceral layers
Lobules - CT between tubulaes made from albuginea

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7
Q

Type of epithelium in the seminiferous tubules

A

4-8 layers of stratified complex

  • supporting cells (sertoli cells)
  • gem cells
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8
Q

identifying a sertoli cell

A

oval

distinct nucleus.

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9
Q

how to identify a spermatogonia

A

attached to the basement membrane

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10
Q

primary spermatocytes

A

large speckled nuclei

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11
Q

spermatids look like

A

round nucleus

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12
Q

spermatozoa look like

A

enlongated

flagella

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13
Q

Types of spermatogonia - functions

A

Dark type A - reserve. divide to make pale type a
(dark people are reserved)

Pale Type A - renewing stem cells. make more of themselves. differentiate to type b

Type B - make mature gametes

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14
Q

primary spermatocytes. look and function:

A

large - diploid

enter meiosis I

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15
Q

secondary spermatocytes. look and function:

A

haploid - short existence

enter meiosis 2

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16
Q

Cells don’t completely divide - form what

A

syncytia

- spermatids

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17
Q

Spermatids

A

round nuclei
after both meiotic divisions
syncytium

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18
Q

where are the mitochondria in a spermatozoa

A

o==————-~

^ there

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19
Q

matuation of spermatids is called:

4 phases

A

spermiogenesis

  • golgi - form acrosome from golgi
  • cap - acrosome granules fuse
  • acrosomal - head orients, nuclear elongation
  • maturation - residual body is shed - phagocytosed by sertoli - released into semineferous tubule
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20
Q

Blood testis barrier formed by what?

from what junction proteins?

A

Sertoli cells

Zonula occudens

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21
Q

Sertoli cells
what receptor?
They make what binding protein?
make what hormone?

other function?

A

FSH receptor
Androgen binding protein
make inhibin

nutrition/nourishment

22
Q

In between lobules, what stuffis there. One important one

A

interstitial space

  • collagenous fibers
  • blood and lymph vessels
  • fibroblasts, macrophages, mast
  • mesenchyme
  • cells of LEYDIG~
23
Q

What do the cells of leydig do?

what do they look like?

A

Make testosterone
they’re pretty big, light staining, eosionophilic. lots of ER
in groups
crystalloid inclusions

24
Q

Where does LH bind? what does that do?

A

To the LH receptor on Leydig cells

secretes testosterone –> negative feed back to hypothal

25
Q

Where are FSH receptors?

what does it cause

A

Sertoli cells
- makes inhibin –> negative feedback of FSH
Also causes increase in Androgen Binding Protein to maintain testosterone levels

26
Q

What cells are temperature sensitive?

A

Sertoli
not Leydig - so undescended balls can still make testosterone, but sperm production will be bad (because sertoli is nourishment to sperm production)

27
Q

excretory ducts

A 
tubuli recti - strait tubules
rete testis 
efferent ductules
epididymis
ductus (vas) deferens
28
Q

strait tubule
connect to
epithelium type

A

can’t see them well
connect to rete
simple colomnar - sertoli-like

29
Q

Rete testis

epithelium type

A

plexus

simple cuboidal

30
Q

Efferent ducts

epithelium type

A

about 12 of them form a conical spiral
simple columnar - tall (ciliated) move thing through
short cells (villi) - absorb stuff
smooth muscle and elastic fiber

31
Q

Epidymis
receives from the:
epithelium type:

A 
efferent tubules
pseudostratified columnar
 - stereocilia
 - basement membrane
has smooth muscle
32
Q

Vas deferens

epithelium type

A

pseudostratified columnar with cilia, basement membrane, lamina propria
thick muscle wall
runs with spermatic cord, arteries, veins, lymph vessels, nerve

33
Q

3 layers of muscle in the vas deferens

A

inner longitudinal
middle longitudinal
outer longitudinal

adventitial

34
Q

other name for ejaculatory duct

A

ampulla

- no cilia

35
Q

seminal vesicles

  • what is it
  • when do you get it
A

unbranched tubular diverticulum of vas deferens

not developed until puberty

36
Q

features of mucosa of seminal vesicles

A

lots of folds

columnar epithelium - yellow lipochrome pigment vesicles

37
Q

function of seminal vesicles

A

secrete yellow viscous fluid
- FRUCTOSE, ascobil acid, prostaglandins
lots of volume of ejaculate

38
Q

Prostate gland develops when?

A

puberty

39
Q

THere are 3 types of glands in the prostate

what are they

A

mucosal - small. BPH
submucosal - form a ring?
main - large, most of gland secretion

40
Q

What does the prostate do?

A

continuous fluid production
acid phosphatase (PAP)
Prostate specific antigen (PSA)

41
Q

What are prostate concretions?

A

calcified protein and carbs

- increase with age

42
Q

bulbourethral glands

fuctions

A

pea sized - in connective tissue

secrete viscous lubrication fluid when you make the sex

43
Q

Secretions that are in semen

A

epidiymal, seminal vesicle and protate

44
Q

penis skin charateristics

A

thin, no fat, elastic CT

prepuce - foreskin

45
Q

arteries involved in erection

A

helicine - drain to deep artery

46
Q

penile erection

what happens to veins and arteries

A

parasympathetic simulation

  • smooth arteries relax –> blood flow
  • veins become compressed
47
Q

emmision

A

sympathetic response

- smooths mucles of epidid, deferens and ejaculatory duct contract

48
Q

detumescence

what happens to arteries

A

sympathetic stimulations –> arteries regain tone

49
Q

Male urethra

3 types and epithelium for them

A

prostatic - transitional to stratified columnar
membranous - stratified columnar
penile - stratified columnar to stratified squamous

50
Q

scrotum - skin characteristics

A

lots of melanin

sub cutaneous - no fat. smooth muscle (dartos)

51
Q

thermoregulation on scrotum

A

cold - dartos muscle contracts - pull closer

Josh Endo week 3 (12 decks)

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