Embryology

Aka: Embryology, Embryo Organ Development

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II. Physiology: Spinal Cord development (Peripheral Nervous System)

  1. Differentiation: 3-4 weeks
  2. Completely forms: 20 weeks

III. Physiology: Brain development (Central Nervous System)

  1. Differentiation: 3 weeks
  2. Completely forms: 28 weeks
  3. Brain Teratogen susceptibility
    1. Highly Sensitive: 3-5 weeks
    2. Less Sensitive: 6-38 weeks

IV. Physiology: Eye development

  1. Differentiation: 3 weeks
  2. Completely forms: 20-24 weeks
  3. Eye Teratogen susceptibility
    1. Highly Sensitive: 4-8 weeks
    2. Less Sensitive: 8-38 weeks

V. Physiology: Olfactory system development

  1. Differentiation: 4-5 weeks
  2. Completely forms: 8 weeks

VI. Physiology: Auditory system development

  1. Differentiation: 3-4 weeks
  2. Completely forms: 24-28 weeks
  3. Ear Teratogen susceptibility
    1. Highly Sensitive: 4-9 weeks
    2. Less Sensitive: 9-12 weeks

VII. Physiology: Respiratory Tract Development

  1. Differentiation: 5 weeks
  2. Completely forms: 24-28 weeks

VIII. Physiology: Heart Development

  1. Differentiation: 3 weeks
  2. Completely forms: 6 weeks
  3. Heart Teratogen susceptibility
    1. Highly Sensitive: 3-6 weeks
    2. Less Sensitive: 6-8 weeks

IX. Physiology: Gastrointestinal Tract development

  1. Differentiation: 3 weeks
  2. Completely forms: 24 weeks

X. Physiology: Renal development

  1. Differentiation: 4-5 weeks
  2. Completely forms: 12 weeks

XI. Physiology: Genital development

  1. Differentiation: 5 weeks
  2. Completely forms: 7 weeks
  3. External Genitalia Teratogen susceptibility
    1. Highly Sensitive: 7-9 weeks
    2. Less Sensitive: 10-38 weeks

XII. Physiology: Face Development

  1. Differentiation: 3-4 weeks
  2. Completely forms: 8 weeks
  3. Lips Teratogen susceptibility
    1. Highly Sensitive: 5-6 weeks
    2. Less Sensitive: 6 weeks
  4. Teeth Teratogen susceptibility
    1. Highly Sensitive: 6-8 weeks
    2. Less Sensitive: 9-20 weeks
  5. Palate Teratogen susceptibility
    1. Highly Sensitive: 6-8 weeks
    2. Less Sensitive: 9 weeks

XIII. Physiology: Limb Development

  1. Differentiation: 4-5 weeks
  2. Completely forms: 8 weeks
  3. Arms Teratogen susceptibility
    1. Highly Sensitive: 4-7 weeks
    2. Less Sensitive: 8 weeks
  4. Legs Teratogen susceptibility
    1. Highly Sensitive: 4-8 weeks
    2. Less Sensitive: 8-9 weeks

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