Female Reproductive Tract Flashcards Preview

CTC Junior Vet science > Female Reproductive Tract > Flashcards

Flashcards in Female Reproductive Tract Deck (38):
1

Uterine Horns

The place the embryo develops in the female

2

Ovaries

Part of the female reproductive tract that produces ova and female sex hormones

3

Oviduct

Place where sperm and egg meet and fertilize

4

Uterus

Place where embryo attaches and develops

5

Cervix

Lots of connective tissue; passage between the uterus and vagina

6

Vagina

Female organ of copulation and birth canal; place where sperm is deposited and site of urination

7

Vulva

Exterior genitalia that leads to the vagina; includes left and right labia

8

Infundibulum

Thin membranous tissue that wraps around the ovary to catch the release ovum from the ovary

9

Polyestrous

Female continues to stay in estrous cycle until it becomes bred

10

Seasonally Polestrous

Female stays in estrous cycle only during certain times of the year

11

4 Phases of Estrous

Proestrus
Estrus
Metaestrus
Diestrus

12

What happens during Proestrus

3 days before heat
Prostaglandin is released into the bloodstream by the uterus
More Lutenizing Hormone and Follicle Stimulating Hormones are produced
The follicle releases more estrogen
Estrogen is responsible for behavioral changes before heat

13

What happens during Estrous

8-48 hours
Egg is released 10-14 hours after onset of estrus
Ovulation occurs on day 1
Animal is possibly fertilized then
Follicle collapses

14

What happens during Metestrus

After ovulation
lasts 3-4 days
Estrogen declines
A Corpus Luteum is created and produces progesterone
Progesterone stimulates uterus to prepare for embryo

15

What happens during Diestrus (if pregnant)

Embryo moves into the uterus and implants
Progesterone is produced in large amounts to stimulate growth in lining of the uterus
Corpus luteum will not regress

16

What happens during Diestrus (if open)

Lasts 12-15 days
Uterus will release prostaglandin and animal will renter proestrus

17

Estrous

The entire cycle that occurs between when the animal goes into heat and ovulation

18

Estrus

Period of standing heat. Female is sexually receptive to male

19

Ovulation

When egg is released from the follicle to be fertilized

20

Luteolysis

Dying of Corpus Luteum

21

Foliculogenesis

The process where immature follicles develop into mature follicles

22

Gravid Uterus

Uterus is caring something
Pregnant

23

Hormone

Chemical messenger that travels to specific organs and prompts a specific response from the organ

24

Cervix

Forms tight barrier to keep out bacteria
Lubricates for sperm transmission
Flush of fetus

25

4 parts of the Oviduct

Infundibulum
Ampulla
Isthmus
Uterotubal Junction

26

Infundibulum

"Catcher's mitt"
Surrounds ovary, catches ovulated egg, put in oviduct

27

Ampulla

Moves sperm and egg through duct

28

Isthmus

Joins with ampulla to the uterine horn

29

Uterotubal junction

Joins the oviduct to the uterine horn

30

Functions of the Uterus

Sperm transport
Control follicle growth cycles
house and grow embryo
Expulsion of fetus

31

4 Important hormones

Estrogen
Progesterone
Follicle stimulating hormone
Luteinizing hormone

32

Estrogen

Produced by: Ovary (follicle)
Function : regulate reproductive cycle and behavior during estrus

33

Progesterone

Produced by : Ovary (Corpus Luteum)
Function : maintain pregnancy

34

Follicle Stimulating hormone (FSH)

Produced by : Anterior Pituitary in brain
Function : Follicular growth in ovary

35

Luteinizing Hormone (LH)

Produced by : Anterior Pituitary in brain
Function : Cause ovulation, stimulate CL (follicle stage) to secrete progesterone

36

Estrous Cycle - Phases and stages and when they happen

1. Follicular Phase
- Proestrus stage
-Estrus stage
2. Luteal Phase
- Diestrus stage
- Metestrus stage

37

Functions of the ovary

Storage site of immature follicles
Produce oocyte
Produce hormones (Estrogen and Progesterone)

38

Foliculogenesis

Process where immature follicles develop into mature follicles