Chapter #2 pt.2

Question 1

What is the Period of Zygote?

Answer 1

1-2 Weeks

Question 2

Where is the Egg Fertilized?

Answer 2

In the fallopian tube

Question 3

What happens in the Fallopian Tube?

Answer 3

• Rapid cell division
• after about four days, the zygote is called a blastocyst

Question 4

What is Placenta:

Answer 4

The biggest gland cause secretes hormones that support pregnancy
Genetically matches the future baby, but the basis of its made of maternal tissue

Question 5

What Does Placenta do:

Answer 5

Supplies oxygen, removes carbon dioxide, filters waste products, supplies nutrients

Question 6

What are Endometrium Cells?

Answer 6

very tightly aligned and packed with lethal immune cells

Question 7

How do misscarriages Occur?

Answer 7

Embryo needs to start and keep on sending active hormonal signals, and if it can’t, it will miscarrages

Question 8

What is the Period of the Embryo?

Answer 8

Weeks 3-8

Question 9

What is an Embryo?

Answer 9

A blastocyst that is completely embedded into the uterine wall
Body structures and internal organs are formed during this period

Question 10

What are the three layers of cells?

Answer 10

1. Ectoderm –> hair, outer layer of skin, nervous system
2. Mesoderm –> muscles, bones, circulatory system
3. Endoderm –> digestive system and the lungs

Question 11

Where Does the embryo Rest?

Answer 11

The Amniotic Sac, which is filled with amniotic fluid

Question 12

What Does the Umbilical Cord Join?

Answer 12

Embryo to placenta