Female Reproduction

Question 1

(def) Primary sex organ that produces eggs and hormones

Answer 1

Ovary

Question 2

What is ovulation?

Answer 2

Follicle ruptures and releases an egg

Question 3

What is the order of CA, CH, and CL?

Answer 3

CH - CL - CA

Question 4

What is the corpus hemorrhagicum?

Answer 4

Site formerly occupied by the ovum is filled with blood

Question 5

What is the corpus luteum?

Answer 5

If pregnant, the CH is filled with cells and produces a CL to secrete progesterone to maintain pregnancy

Question 6

What is the corpus albicans?

Answer 6

If pregnancy does not occur, the CL regresses to form a CA

Question 7

What is the site of fertilization?

Answer 7

Oviducts (fallopian tubes)

Question 8

What is the infundibulum?

Answer 8

A funnel to pick up ovulated egg

Question 9

What is the site of placental, embryotic and fetal development, also produces prostaglandin?

Answer 9

Uterus

Question 10

(def) Connects the uterus to the vagina, most of the time is closed but opens when sperm comes in or egg comes out

Answer 10

Cervix

Question 11

(def) Copulatory organ, birth canal

Answer 11

Vagina

Question 12

(def) External genitalia, only part you can see

Answer 12

Vulva

Question 13

What does the GnRH do?

Answer 13

Stimulates LH and FSH release

Question 14

What does FSH do (female)?

Answer 14

Stimulates growth of follicles, additional FSH through injections can stimulate multiple ovulations

Question 15

What does LH do (female)?

Answer 15

Causes follicle to rupture and CL to form, OVULATION

Question 16

What does prolactin do?

Answer 16

Initiates and maintains lactation

Question 17

What does oxytocin do?

Answer 17

Stimulates uterine contractions, milk letdown, and egg laying. Injections help animals having problems with milk let downs

Question 18

Gonadal hormones are produced by the _________.

Answer 18

Ovary

Question 19

Where is estrogen produced?
Progesterone?
Relaxin?

Answer 19

E: follicle on the ovary
P: corpus luteum
R: Ovaries or placenta

Question 20

What does estrogen do?

Answer 20

Develops secondary sex characteristics and general appearance, prepares uterus for pregnancy

Question 21

What does progesterone do?

Answer 21

Prevents ovulation (if you have pregnancy), maintains pregnancy

Question 22

What does relaxin do?

Answer 22

Causes relaxation of cartilage to help with birth, allows cervix to open

Question 23

Difference between estrus and estrous?

Answer 23

Estrus: the animal is in heat
Estrous: One ovulation to the next, cycle

Question 24

Who uses a diffuse placenta?

Answer 24

Mare and sow

Question 25

What and who uses a cotyledonary placenta?

Answer 25

Cow and ewe
Placenta actually attaches to mother, better for growing

Question 26

Function of placenta?

Answer 26

Transmission of nutrients, wastes, protection from shock, prevention of bacteria, and secretion of hormones

Question 27

(T/F) Placenta comes from mother

Answer 27

False, it comes from the fetus

Question 28

What animals have shortest/longest estrous cycle?

Answer 28

Short: Ewe
Long: Mare, cow, sow

Question 29

What animals have shortest/longest estrus period?

Answer 29

Short: Cow
Long: Mare

Question 30

What animals have shortest/longest gestation?

Answer 30

Short: Sow (114 days)
Long: Mare (11 mo)