Review Sheet

Question 1

Infertility

Answer 1

The inability of a couple to have a baby

Question 2

Assisted reproductive technologies

Answer 2

Technologies used to achieve fertilization and pregnancy

Question 3

Uterus

Answer 3

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

Question 4

Intracytoplasmic sperm injection

Answer 4

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

Question 5

Gamete intrafallopian transfer

Answer 5

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.

Question 6

In vitro fertilization

Answer 6

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

Question 7

Stem cells

Answer 7

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

Question 8

Artificial Insemination

Answer 8

Collecting sperm and injecting it into a female

Question 9

Surrogate mother

Answer 9

Becomes pregnant and gives birth to a baby

Question 10

Ectoderm

Answer 10

Forms skin and nervous system

Question 11

Mesoderm

Answer 11

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

Question 12

Endoderm

Answer 12

Forms lungs, liver, and lining of digestive system

Question 13

First trimester

Answer 13

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

Question 14

Second trimester

Answer 14

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

Question 15

Third trimester

Answer 15

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

Question 16

Differentiation

Answer 16

Development of organs and body structures from blastula

Question 17

Mating

Answer 17

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

Question 18

External fertilization

Answer 18

Sperm and egg cell meet outside of the body

Common with fish

Question 19

Internal fertilization

Answer 19

Sperm and egg cell meet inside he body

Common with birds

Question 20

Embryonic development

Answer 20

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