Period Of The Embryo/Embryonic Stage

Question 1

Embryonic stage lasts from implantation through how many weeks of pregnancy?

Answer 1

Eighth week

Question 2

Wjen the zygote is embedded in the uterine wall it is now called what?

Answer 2

Embryo

Question 3

In this stage, rapid _____________ take place as the ground work for all body structures and internal organs is laid down.

Answer 3

Prenatal changes

Question 4

What month of prenatal stage does the three layers of the cell form(ectoderm, mesoderm, endoderm)?

Answer 4

Last half of the first month

Question 5

__________will become the nervous system and sjin.

Answer 5

Ectoderm

Question 6

____________ will develop the muscles, skeleton, circulatory system and other internal organs.

Answer 6

Mesoderm

Question 7

____________ will become the digestive system, lungs, urinary tract and glands.

Answer 7

Endoderm

Question 8

In what month of the prenatal stage does the growth continues rapidly and forms the eyes, ears, nose, jaw, and neck?

Answer 8

Second month