Most of the Increase in Brain Weight After Infancy Is

question 3

Short Answer

Most of the increase in brain weight after infancy is due to _____.

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Definitions:

Blastocyst

A structure formed in the early development of mammals, consisting of a cellular shell that encloses a cavity and a cluster of cells from which the embryo develops.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to and removing waste from the fetus.

Germinal Stage

The period of development between conception and the implantation of the embryo.

Diethylstilbestrol

A synthetic estrogen introduced in the late 1930s to treat various medical conditions, later found to cause cancer and other problems in the daughters of women who took it while pregnant.