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Development of life
Day 1: Conception takes place.
7Days: Tiny human implants in mother’s uterus.
18days: Heart begins to beat.
21days: Pumps own blood through separate closed circulatory system. Has own blood type.
28days: Eye, ear & respiratory system begins to form.
42days: Brain waves recorded, skeleton complete, reflexes present.
7wks: Can suck thumb.
8wks: All body systems present.
9wks: Squints, swallows, moves tongue, makes fist.
11wks: Spontaneous breathing movements, has fingernails, all body systems working.
16wks: Genital organs clearly differentiated, grasps with hands, swims, kicks, turns.
18wks: Vocal cords work - can cry.
20wks: Has hair on head, 12 inches long
23wks: 15% chance of viability if born now.
24wks: 56% chance of viability if born now.
25wks: 79% chance of viability if born now.
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