4-Zoology-Development-Stages-Gestation-Embryo 042 Day
hypothalamus development
6 weeks: Arms and legs appear, reflex-arc elements appear, sympathetic ganglia form segmental masses, hypothalamus and epithalamus begin, and cerebral hemispheres start {hypothalamus development}. Embryo is 12 millimeters long.
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Date Modified: 2022.0225