Migration Refers to

question 14

Multiple Choice

Migration refers to

• A) Early tooth bud mesial drift
• B) Deepening of the nasal pits
• C) Increase in connective tissue of the upper lip
• D) Fusion of the medial nasal process

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Definitions:

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.

Teratogens

Agents capable of interrupting the normal development of an embryo or fetus, resulting in serious developmental disorders or birth defects.

Blastocyst

An early stage in the embryonic development of mammals, consisting of a sphere made up of an outer layer of cells and a fluid-filled cavity.