Movie Theater
Sections of the Brain
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Script: By 3 weeks the brain is dividing into 3 primary sections called the forebrain, midbrain, and hindbrain. Development of the respiratory and digestive systems is also underway. | ||
| All ages referenced to fertilization, not last menstrual period. |
The Embryo and Yolk Sac
Embryonic Development
Sections of the Brain
Body Cavity Formation
Amniotic Fluid
The Heart in Action
