Female Reproductive Anatomy Flashcards Preview

Theriogenology > Female Reproductive Anatomy > Flashcards

Flashcards in Female Reproductive Anatomy Deck (49):
1

What is theriogenology?

Discipline in vet med dealing with all aspects of reproduction.

2

What is important to remember about the mucosa along the female repro tract?

There are different types all the way down.

3

What should you be able to do with a bovine uterus on rectal palp and why?

Flip the uterus up to palpate the entire length because it has a very lose broad ligament.

4

Roughly where are the ovaries located in a bovine?

Usually around the level of the cervix.

5

What species has a similar repro tract to cows?

Sheep and goats (small ruminants)

6

What is a characteristic difference in a sow?

Corkscrew cervix

7

Why does a sow have such huge uterine horns?

Need room for 10-16 piglets in a litter.

8

What is a major difference between a mare and a cow?

Mare has a very tight broad ligament (think long horn shaped)

9

What cell type is in the vestibule?

Ectoderm

10

What cell type is beyond the vestibule (cranial vaginal, cervix)?

Mesoderm

11

What comprises the placentome?

Caruncles and cotyledons

12

What is the maternal portion of a placentome?

Caruncle

13

What is the fetal portion of a placentome?

Cotyledon

14

Describe an equine uterus.

Big uterine body with chubby uterine horns.

15

In a mare, what will get looser or tighter depending on the hormones?

Longitudinal folds in the cervix.

*Tight with PG, loose with Estrogen

16

Describe the uterus in the bitch.

Tiny uterine body with long uterine horns.

17

What do dogs have around their uterus that you need to be aware of during a spay?

Lots of fat, need to make sure you've gotten the ovaries out.

18

What species has a "pillowy vagina"?

Canine

19

If you're taking cytology from a bitch, where do you take the cells from?

Closer to the cervix.

20

What can you see in a uterine horn of a queen that has had a litter?

Placental scars

21

What is a difference between cow and ewe circulation?

Bovine uterus can work with just one side, the ewe needs both sides.

22

What does the mare need in order to get the full signal that she's pregnant?

The fetus needs to move around all over the uterus.

23

List the structures in the ovary in chronological order.

Primordial follicles
Primary follicles
Secondary follicles
Developing antral (tertiary) follicle
Antral (dominant) follicle
Ovulating follicle
Corpus luteum

24

What happens to primary follicles?

Develop into secondary follicles, or degenerate

25

What is a primary follicle?

Oocyte surrounded by single layer of cuboidal cells.

26

What is a secondary follicle?

Oocyte surrounded by more than one layer of cells, but no cavity (antrum)

27

What structure do we see in the secondary follicle?

Zona pellucida

28

What structure do we see in the tertiary (developing antral) follicle?

Antrum, filled with follicular fluid

29

What happens to tertiary follicles?

Develop into Graffian/dominant follicle or degenerate

30

What stage of follicle development is often palpable?

Tertiary follicle/Developing antral follicle

31

What happens to the dominant follicle?

May ovulate or degenerate.

32

What structure are we looking for when an animal is ready to ovulate? (Hint: it can be palpated and seen with the naked eye)

Dominant follicle

33

What is the name for a degenerating CL?

Corpus albicans

34

What path does the follicle take to get from the ovary to the uterus?

Infundibulum > Ampulla > Isthmus > Uterine horn

35

What is the role of the infundibulum?

To capture the egg and pass it down to the ostium of the ampulla.

36

What part of the uterine horn has the greatest surface area?

The ampulla

37

Which part of the uterine horn is thick and muscular to help push sperm up towards the egg?

The isthmus

38

Which part of the uterine horn is thick and muscular to help push sperm up towards the egg?

The isthmus

39

Where does fertilization occur?

At the ampullar-isthmus junction

40

Where does fertilization occur?

At the ampullar-isthmus junction

41

What is odd about the mare ovary?

It is inverted so follicles move INTO the ovary.

*NOTE: You should NOT be able to palpate a CL because of this.

42

What is a duplex uterus?

Two cervices

43

What species have a duplex uterus (two cervices)?

Marsupials and rabbits

44

What is a bicornuate uterus?

Has two uterine horns

45

What species have a bicornuate uterus?

Equine, bovine, canine, feline and porcine.

46

What two species have poorly to moderately developed uterine horns?

Bovine and equine.

47

What three species have highly developed uterine horns?

Canine, feline and porcine.

48

What is a simplex uterus?

No uterine horns.

49

What species has a simplex uterus?

Primates