Reproductive System Flashcards

1
Q

In the ovary, the cortex contains

A

follices

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2
Q

The medulla in the ovary is

A

vascularized

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3
Q

Granulosa cells secrete

A

estrogen

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4
Q

What makes follicles mature

A

estrogen and FSH

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5
Q

Ovulation is triggered by

A

LH

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6
Q

Primordial follicle

A
  • found in superficial cortex
  • Oocyte surrounded by simple squamous epithelium
  • Oocyte in prophase of first meiotic division
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7
Q

Unimlaminar primary follice

A
  • beginning in puberty, FSH from pituitary stimulates process of follicular growth
  • Oocyte surrounded by simple cuboidal
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8
Q

Multilaminar primary follice(growing follicle)

A
  • Follicular cells proliferate
  • Oocyte surrounded by stratified cuboidal epithelium (granulosa)
  • Zona pellucida appears between oocyte and first layerof granulosa cells
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9
Q

Glycoprotein coat initiates

A

acrosome reaction (ZP3 and ZP4 sprem receptors)

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10
Q

Interstitial cells

A

differentiate into theca folliculi

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11
Q

Granulosa cells accumulate

A

liqur folliculi

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12
Q

Granulosa

A
  • creates fluid filled chamber = antrum

- Converts androgens to estradiol via aromatase

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13
Q

theca folliculi is seperated from the granulosa by

A

basement membrane

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14
Q

Theca folliculi layers

A
  • theca interna

- theca externa

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15
Q

theca interna

A

endocrine tissue that secretes androgens

converts to estradiol, returned and secreted into blood

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16
Q

Theca externa

A

connective tissue and smooth muscle

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17
Q

Oocyte surrounded by several layers of granulosa cells

A

corona radiata

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18
Q

Oocyte in the antrum is suspended by

A

cumulusoophorus

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19
Q

in ovulation, the response from a surge of LH

A
  • oocyte in mature follie completes first meiotic division, arrested in metaphase II
  • Granulosa cells produce prostaglandins/hyaluronan, ovarian wall weaks
  • mature follicle rupture and releases ovum together with coronaradiata
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20
Q

ruptured follicle fills with blood

A

corpus hemorrhagicum

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21
Q

what is the central clot later replaced with

A

dense connective tissue

22
Q

Granulosa lutein cells secrete

A

progesterone and estrogen

23
Q

theca lutein cells secrete

A

androgens and progesterone

24
Q

After 14 days of absence of pregnancy, the corpus luteum

A

degenerates

25
No LH
no pregnancy
26
Decreased progesterone
leads to menstruation
27
dense connective scar
corpus albicans
28
follicles thatfail to mature, die via
atresia
29
Fimbriae
swepts ovum into oviduct
30
Oviduct
- 3 layered tube to provide environment for fertilization and groeth - Folded mucosa, muscularis, serosa
31
Epithelium contains what type of cells
- Ciliated cells (beat towards uterus) | - Peg
32
What are Peg cells
They secrete factors that activate sperm and provide nutrition and protection for ovum or zygote
33
Where does fertilization usually occur
in the ampulla
34
What the endometrium composed of in the uterus
Functionalis and Basalis
35
What does the functionalis layer do
it sheds during menstruation
36
What does the Basalis layer do
remains after menstruation and contains bases of glands
37
What is the functionalis supplied by
coiled arteries that are progesterone sensitive
38
What is the proliferative stage stimulated by
estrogen
39
What sitmulates the epithelial cells of the corpus luteum
progesterone
40
Epithelium of endocerix at birth
stratified squamous non-keratinized
41
at the transformation zone, what is happening
columnar epithelium in the endocervix is being replaced by stratified squamous epithelium from the ectocervix
42
What cause epithelial cells to synthesize glycogen in the vagina
estrogen
43
what role do sertoli cells have
physically and metabolically suport developing sperm | form blood-testes barrier
44
What cell produces sperm
spermatogenic cells
45
what cells produce androgens
leydig cells
46
what is the epididymis lined with
pseudostratified columnar epithelium
47
where does sperm undergo final maturation
epididymis
48
what does the seminal vesicle contribute
- 70% of volume - Fructose - Prostaglandins - Fibrinogen
49
Prostate gland
secrete proteolytic enzymes , composed of zinc, citric acid and acid phosphatase
50
Prostate:Transition zone
mucosal glands
51
Prostate: Central zone
submucosal glands
52
Prostate: Peripheral zone
main glands