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009 > MALE REPRODUCTION > Flashcards

MALE REPRODUCTION Flashcards

1
Q

list the structures in the spermatic ducts

A
  • epididymis
  • ductus deferens
  • ejaculatory ducts
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2
Q

list the structures in the accessory sex glands

A
  • seminal vesicles
  • prostate
  • bulbourethral glands
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3
Q

list the structures in external genitalia

A

penis scrotum

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4
Q

function of male repro system

A
  • spermatogenesis
  • production of seminal fluids
  • steroidogenesis
  • sex
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5
Q

what is testes site of

A

spermatogenesis
steroidogenesis

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6
Q

what temp is required for spermatogenesi

A

2-3 degrees

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7
Q

list the layers of testes

A
  • tunica vaginalis
  • tunica albuginea
  • tunica vasculosa
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8
Q

what is tunica vaginalis reminent of

A

peritoneum

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9
Q

what lines testes

A

serous membranes and interior of scrotum

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10
Q

what does tunica vaginalis produce

A

serous fluids to reduce friction

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11
Q

list the layers of tunica vaginalis

A

parietal layer
visceral layer

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12
Q

list the lobule of testes

A

seminiferous tubules

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13
Q

what is seminiferous tubules site of

A

spermatogenesis

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14
Q

what is in the connective tissue stroma

A

leydig cells

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15
Q

what is leydig cells site fo

A

steroidogenesis

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16
Q

spermatogenic epithelium

A

contains sertoli cells and spermatogenic cells

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17
Q

what type orf cells are myoid cells

A

contractile cells

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18
Q

what are sertoli cells

A

supporting cells - true epithelium

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19
Q

what do spermatogenic cells undergo

A

spermatognesis to turn into mature sperm

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20
Q

where do spermatogenic cells migrate towards once they mature

A

lumen

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21
Q

what does spermatogenesis process consists of

A

mitosis, meiosis and spermiogeneis

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22
Q

what is the final differentiaon in sperm

A

spermiogenesis > final differentiation from round cells into mature sperm

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23
Q

where do spermatogonia cells sit on

A

basal lamina of seminiferous tubules

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24
Q

how many types of spermatogonia

A

TYPE A: DARK AND LIGHT
TYPE B

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25
Q

what is the type A dark cells in spermatogonia

A

stem cell reserve
- mitosis to replace themselves and maintain stem cell reserve

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26
Q

what is light in type a cells

A

renewing stem cells
committed to differentiate but first undergo mitotic divisiosn to increase number

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27
Q

type b in spermatogonia

A

last step in spermatogonial phase

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28
Q

what do type b spermatogonia undergo

A

meiosis
to produce primary spermatocytes

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29
Q

what do type b spermatogonia immediately replicate and for how long

A

DNA
and enter prophase I of meiosis in22 days

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30
Q

after type b spermatogonia undergo first meiotic division to become

A

primary
spermatocytes

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31
Q

do secondary spermatocytes replicate dna

A

no as they immediately enter prophase II of meiosis

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32
Q

what do secondary spermatocytes complete to form

A

2nd meiotic division to form spermatids (few hours)

33
Q

are there changes to dna or cell divison in spermatids

A

no

34
Q

what do spermatids transform into

A

mature sperm = spermiogenesis

35
Q

what do spermatids physically attach to

A

sertoli cells during transformation

36
Q

where does the final matturation of spermatoza occurs in

A

epididymis

37
Q

what does the head of epididymis contain

A

acrosome
- enzymes to penetrate zona pellucida for fertilisation

38
Q

function of sertoli cells

A

nutrients and growth factors, remove wastes
and BLOOD TESTIES BARRIER

39
Q

what is blood testis barrier unique to

A

sertoli cells - junctional complex

40
Q

what does blood testis barrier have which is very tight

A

tight junctions zona occludens

41
Q

what does blood testis barrier segregates

A

pre-meiotic and post - meiotic

42
Q

what is post meiotic

A

different dna

43
Q

can antigens produced by sperm enter blood testies barrier

A

cant enter ciruclation

44
Q

what happens if BTB fails

A

infertilisation

45
Q

where is sperm manufactured in

A

testes

46
Q

where is the storage and maturation of sperm in

A

epididymis

47
Q

what does ejaculation forces sperm into

A

vas deferens

48
Q

what does sperm meet with

A

seminal vesicles to form ejaculatory duct

49
Q

where does sperm passes through and emptis into

A

seminal vessicles
urethra

50
Q

where does contraction occur in ejaculation

A

vas deferens *sperm)
seminal vesicles and prostate and expel fluid

51
Q

where does immature sperm enter epidiymis

A

at head (incapable of infertilisation)

52
Q

how long does sperm take to travel through epidiemyis and undergo further maturation

A

12 days

53
Q

where is mature sperm expelled from

A

tail into vas deferens at ej..

54
Q

what is epididymis lined with

A

pseudostratified epithelium

55
Q

what is the prinicapl cell of epididymis

A

stereocilia > absorptive

56
Q

what happens in vas deferens

A

strong peristalltic contractions at emission carry sperm from epididymis to seminal vesicles

57
Q

list the layers of vas deferens

A

inner longitudinal
middle circular
outer longitudinal

58
Q

what combbines with vas deferens to form ejaculatory duct

A

short excretory duct

59
Q

what does seminal vesicle product

A

70% of seminal plasma

60
Q

function of seminal vesicle

A

fructose > main energy source for sperm

61
Q

what does prostate surround

A

neck of bladder and urethra

62
Q

how many compound tubuloalveolar glands does prostate contains

A

30-50

63
Q

how many percentage of seminal plasma does prostate produces

A

30%

64
Q

function of prostate

A

enzymes liquify semen after ejaculation

65
Q

what allows for passage of urine and sperm

A

prostatic urethra

66
Q

what is prostate surrounded by

A

fibromuscular stroma > contractions at ejaculation

67
Q

where do glands of prostate empty into

A

prostatic urethra

68
Q

where do bulbourethral glands empty into

A

penile urethra

69
Q

function of bulb . glands

A

pre cum

70
Q

neck of bladder of urethra ep

A

transitonal

71
Q

prostatic uretha ep

A

transitionalmem

72
Q

membranous urethra ep

A

pseuodostratified

73
Q

most of penile urethra ep

A

pseuo

74
Q

what is corpus cavernosa responsible for in penis

A

erection
90% of bloodwh

75
Q

what does corpus spongiosum contain

A

urethra

76
Q

what is penis surrounded by

A

dense fibroelastic layer

77
Q

what are the 2 striated muscles at base of penis

A
  • bulbospongiosus
  • ischiocavernosus
78
Q
A

009 (8 decks)

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