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15 Cards in this Set
- Front
- Back
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Embryology
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The study of the 38-week prenatal period is called embryology. Embryology helps one understand the basic organization of the human body, as well as the origin of birth defects.
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Prenatal vs Embryotic period
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embryonic period, during which the basic body plan is established, is the first 8 weeks of prenatal development. Embryotic period primarily a time of growth and maturation, is the remaining 30 weeks.
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Ectoderm and endoderm
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Ectoderm and endoderm are epithelial tissues (sheets of closely attached cells).
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Mesoderm
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Mesoderm, is a mesenchyme tissue - muscle, bone, dermis & connective tissue
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epithelial tissues
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(sheets of closely attached cells).
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endoderm
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epithelial tissues - Forms respiratory tubes, digestive organs, and urinary bladder-inner epithelial lining of the gut tube
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Ectoderm
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epithelial tissues -
forms brain, spinal cord, and epidermis |
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Notochord
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defines the body axis and later forms each nucleus pulposus of the vertebral column.
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Neurulation
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ectoderm starts forming brain and spinal cord
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