Lecture 03/Lab 1: Female Repro Histology (Baekey) Flashcards Preview

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Flashcards in Lecture 03/Lab 1: Female Repro Histology (Baekey) Deck (52):
1

tunica albuginea is composed of what tissue?

dense irregular connective tissue

2

where do follicles develop?

cortex of ovary

3

what kind of tissue and what is contained in the medulla of ovary?

vessels and nerves contained in loose connective tissue

4

4 main layers of the ovary

1) surface epithelium
2) tunica albuginea
3) cortex
4) medulla

5

rete ovarii

embryonic remnants equivalent to rete testis

6

hilus cells in ovary produce what?

steroid hormones

7

Where is the medulla in horses?

on the outside of the ovary

8

what kind and how many layers of cells in primordial follicle?

1 layer of SQUAMOUS follicular cells

9

What kind and how many layers of cells in primary follicles?

1 layer of CUBOIDAL follicular cells

10

what kind and how many layers of cell in secondary follicles?

multiple layers of GRANULOSA cells

11

fx of zona pellucida

binds spermatozoa and is necessary for acrosomal reaction

12

cumulus cells

connect membrana granulosa to oocyte in developing follicles (usually tertiary)

13

Difference b/w secondary and tertiary follicles

tertiary has follicular fluid formed from granulosa cells, forming an antrum

14

3 kinds of cells granulosa cells differentiate into in tertiary follicles (less important)

1) columnar corona radiata (adjacent to zona pellucida)
2) cumulus cells (surrounds corona)
3) membrana granulosa (lines follicular wall)

15

theca interna composed of (less important)

epitheliod steroidogenic cells, blood, lymph capillaries

16

theca externa composed of: (less important)

fibroblastic layer

17

follicular stigma

site of rupture during ovulation

18

what does rupture of follicle release?

oocyte, zona pellucida, corona radiata, cumulus

19

corpus hemorrhagicum

precursor to CL after ovulation occurs.
-fills with blood, capillaries invade
-granulosa cells become granulosa lutein cells
-theca interna cells become theca lutein cells
-transition to endocrine gland which produces progesterone

20

luteinization

hypertrophy, hyperplasia, and accumulation of lipid pigment in CL

21

What happens to CL if pregnancy occurs?

enlarges then degrades to corpus albicans after parturition

22

What happens to CL if pregnancy doesn't occur?

degenerates and is invaded by connective tissue

23

corpus atreticum

atretic follicle. Forms from follicles that fail to complete development.
-oocyte liquifies
-zona pellucida thickens and folds
-invasion of connective tissue
-luteinization of theca interna

24

size of lumen in ampulla vs. isthmus

larger in ampulla

25

type of epithelium in ampulla

ciliated ep.

26

muscularis in ampulla vs. isthmus

thicker in isthmus

27

type of epithelium in isthmus

predominantly secretory cells, some ciliated epithelium.

28

type of uterus in marsupials

duples (two independent uteri)

29

tunica mucosa in uterus =

endometrium

30

tunica muscularis in uterus =

myometrium

31

tunica serosa in uterus =

perimetrium

32

Estrogen and progesterone high or low in estrous?

Estrogen high, progesterone low

33

Estrogen and progesterone high or low in metestrous/diestrous?

Estrogen low, progesterone high

34

In which stage of estrus cycle is glandular tissue in uterus the most prolific?

metestrous/diestrous

35

Estrogen and progesterone low or high in anestrous?

both low

36

In which stage of estrus cycle is glandular tissue in uterus LEAST prolific?

anestrous

37

nondeciduate placenta and species with it

-fetal trophoblast tissue interdigitates with maternal tissue but does not invade it
-maternal tissue NOT lost at parturition
-Ruminants, horses, sheep, pigs

38

Deciduate placenta

-Fetal tissue invades maternal tissue
-Maternal tissue lost at parturition
-Cats

39

cervix

valve-like entrance that safeguards the uterus; open during estrus and parturition

40

Type of epithelium in estrus vs. anestrus vagina?

estrus: cornified stratified squamous
anestrus: non-cornified stratified squamous

41

Epithelium lining alveolar ducts in active mammary gland

simple cuboidal or columnar ep.

42

Merocrine secretions from mammary gland contain

protein, carbs

43

Apocrine secretions from mammary gland contains

lipids

44

Holocrine secretions from mammary gland contains

secretory cells, macrophages, leukocytes

45

Total # mammary glands in goat/sheep/guinea pig

2

46

#mammary glands in cattle

4

47

# mammary glands in cat

8

48

# mammary glands in dog

8 or 10

49

# mammary glands in mouse

10

50

# mammary glands in rat

12

51

# mammary glands in pig

18

52

# mammary glands in elephants/primates

2

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