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Spontaneous Movement

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Script: The embryo is becoming more physically active during this time.

Motions may be slow or rapid, single or repetitive, spontaneous or reflexive.

Head rotation, neck extension, and hand-to-face contact occur more often.

All ages referenced to fertilization, not last menstrual period.

Right- and Left-Handedness

Rolling Over

Spontaneous Movement

Reflexive Movement

Epidermis and Hair

The Embryonic Period