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Histology Exam 3 > Lecture 20 Female Repro > Flashcards

Lecture 20 Female Repro Flashcards

1
Q

What are these arrows

A
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2
Q

What are the yellow and blue

A

Yellow=Primary Oocyte
Blue= Follicle

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3
Q

What is this?

A

Primary Follicle
LOOK AT SIMPLE SQUAMOUS

it surrounds an oocyte(Yellow)

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4
Q

What are blue and Green

A

Green= cuboidal granulosa cells convert estrogen-precursor to estrogen

Blue= Zona Pellucida

Red= Theca interna cells form from stromal cells
luteinizing hormone stimulates them to secrete steroid estrogen-precursor

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5
Q

Label each

A

Granulosa cells secrete fluid rich in estrogen & GAGs – liquor folliculi

Antrum (A) (spaces that collect the liquor folliculi) – appearance indicates secondary follicle)

Theca interna (TI, white line) has steroid secreting cells (bubbly lipid droplets)

Theca externa (TE, blue line) has fibroblasts & smooth muscle

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6
Q

What the the arrows

A

Yellow= Corona radiata consists of some granulosa cells surround and accompany oocyte during ovulation

Red= Cumulus oophorus – granulosa cells that form a connecting stalk

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7
Q

What is the stigma

A

Mature follicle (F) bulges against peritoneum creating an ischemic “blister” – stigma (S)

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8
Q

Whats going on here

A

Not every follicle gets to ovulate

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9
Q

What is this structure

A

corpus luteum – specialized gland that secretes progesterone (if pregnancy occurs, placenta secretes hCG* to maintain corpus luteum until ~ Wk 11)

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10
Q

If there is no fertilization to Corpus Luteum

A

Corpus luteum is temporary: degrades to scar-like corpus albicans

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11
Q

What type of cells are these in the Corpus Letuem

A

Theca lutein cell
Smaller & darker

Produce estrogen

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12
Q

What kind of cells are these on the corpus Leutuem

A

ranulosa lutein cell
Bigger & paler

Produce estrogen

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13
Q

What is this?

A

uterine tube

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14
Q

Three layers of Uterus

A
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15
Q

Endometrium has two layers:

A

Endometrium = simple columnar epithelium + highly vascular stroma (lamina propria)

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16
Q

Whats going on here

A

Menstrual: Functional layer shed – rough luminal surface

17
Q

Whats going on here?

A

Proliferative
▪ Smooth luminal surface
▪ Uterine glands are straight
▪ Coincides w/ follicular phase

18
Q

Whats going on here?

A

Secretory
▪ Glands secrete & coil (zigzag) ▪ Sinuses (lacunae) fill w/ blood ▪ Coincides w/ luteal phase

19
Q
A
20
Q

Sharp transition between endocervix & ectocervix –
transformation zone (TZ)

A
21
Q
A

Histology Exam 3 (5 decks)

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