Fundamental Embryolosis

Question 1

What are the three terms used to describe a fetus and when does each stage occur?`

Answer 1

1. Zygote (1 cell)
2. Morulla (16)
3. Blastocyst (32)

Question 2

What “blast” layer forms the various derms?

Answer 2

Epiderm

Question 3

What 3 steps occur after a blastocyst?

Answer 3

1. Blastula
2. Bilaminar embryo (2 layer are epiblast and hypoblast)
3. Gastrulation (different dermal layers form)