Question

Eliza is undergoing in vitro fertilization, and her physician is explaining prenatal development. Dr. Sanchez has just told her that the zygote will attach to the uterine wall and various body structures will begin to differentiate during cell division. For example, arms and legs will begin to develop. What stage is dr. Sanchez explaining?.

Answer 1

Dr. Sanchez is explaining the embryonic stage of prenatal development to Eliza.

The embryonic stage of prenatal development begins with the implantation of zygote into the uterine wall (3rd week) and lasts till the 8th week with reference to the time of conception. After implantation, the blastocyst undergoes rapid cell division as well as cell differentiation. A neural tube is formed after four weeks from the time of conception.

The head also starts to develop during the fourth week. After this, the formation of the eyes, nose, ears as well as mouth takes place. By the time of fifth week, buds (which will later develop into arms as well as legs) start appearing.

To learn more about blastocyst here

https://brainly.com/question/465851

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