Reproductive Hormones and Gestation Flashcards Preview

CTC Junior Vet science > Reproductive Hormones and Gestation > Flashcards

Flashcards in Reproductive Hormones and Gestation Deck (20):
1

Hormone

Chemical released into the blood and transported to affect cells in other parts of the body

2

Hormones regulate

Growth and development
Male and female sexual development
How the body uses energy
Level of sugar and salts in the body
Amount (volume) of fluid in body

3

Puberty

Process of physical changes by which an animal's body becomes an adult capable of reproduction

4

Puberty is initiated by

Hormones from the brain to the reproductive system (to either ovaries or testes)
Then organs create a variety of hormones stimulating growth, function, or transformation of the brain, bones, muscles, skin...

5

Growth during puberty accelerates

in the 1st half puberty and stops at the completion of puberty

6

Estrogen
Location, Function, Characteristics

Location: mostly females
Function : controls different stages of the reproductive cycle and (in females) controls development of 2nd sex characteristics
Characteristics : Promotes normal bone development

7

Testosterone
Function, Important for

*Steroid hormone
Function : Controls development of male reproductive organs, 2nd sex characteristics, and sex drive
Important in : bone mass development, prevention of osteoporosis

8

Fertilization

When sperm and egg unite, then cell division occurs

9

Attachment

Embryo that has been through much cell division attaches self to uterus for further development

10

Embryotic Stage

Period when body parts and organs start to form

11

Fetal Stage

Period lasts until birth mainly time when body parts and organs start to mature

12

Gestation

Length of pregnancy

13

Cattle Average Gestation

279-292 days
9 months

14

Goat Average Gestation

145-155 days
5 months

15

Sheep Average Gestation

144-151 days
5 months

16

Swine Average Gestation

112-115 days
3 months 3 weeks 3 days

17

Horse Average Gestation

330-342 days
11 months

18

Dog Average Gestation

58-70 days
2 months

19

Cat Average Gestation

58-65 days
2 months

20

Fetus develops where and the most when

In Uterus
In the last 1/3 of gestation