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Flashcards in Review Sheet Deck (20):
1

Infertility

The inability of a couple to have a baby

2

Assisted reproductive technologies

Technologies used to achieve fertilization and pregnancy

3

Uterus

Organ in a female mammal in which the embryo develops and is nourished before birth

4

Intracytoplasmic sperm injection

Specialized procedure in which a single sperm cell is injected into an egg cell. The fertilized egg is then placed into the mothers uterus.

5

Gamete intrafallopian transfer

Egg cells are removed from a woman's ovaries and combined with sperms cells outside of the body. The mixture of eggs and sperm is injected into the mothers Fallopian tubes so an egg cell may be fertilized.

6

In vitro fertilization

Woman's egg cell is placed in a petrol dish, and then sperm is injected into the dish. Fertilized egg is then placed into uterus

7

Stem cells

Unused embryos to help cure disease or regrow impaired or lost organs

8

Artificial Insemination

Collecting sperm and injecting it into a female

9

Surrogate mother

Becomes pregnant and gives birth to a baby

10

Ectoderm

Forms skin and nervous system

11

Mesoderm

Forms kidneys, skeleton, muscles, blood vessels, and reproductive organs

12

Endoderm

Forms lungs, liver, and lining of digestive system

13

First trimester

Lasts 4-12 weeks
Length from 4mm-9cm
Brain and spinal cord forming
Digits have appeared, ears kidneys lungs liver and muscles are developing,
Sexual differentiation almost complete

14

Second trimester

Lasts 16-24 week
Length 20-35cm
Fetal movements felt
Eyelids open, fetus can survive outside mother with specialized care

15

Third trimester

Lasts 26-38 weeks
Length 40-50cm
Rapid weight gain occurs due to the growth and accumulation of fat

16

Differentiation

Development of organs and body structures from blastula

17

Mating

The process by which gametes arrive in the same place at the same time

18

External fertilization

Sperm and egg cell meet outside of the body
Common with fish

19

Internal fertilization

Sperm and egg cell meet inside he body
Common with birds

20

Embryonic development

Development during first 8 weeks
Embryo developed during this stage
After this stage it grows and is called a fetus