Pregnancy and development review

Ectodermal cells form

–      nervous system, parts of special sense organs

–      Epidermis, hair, nails, skin glands

–      Linings of mouth and anal canal

Mesodermal cells form

–    Muscles, bones and marrow, abdominal vessels

–      Lymph vessels, connective tissue, kidneys

–      Internal reproductive organs, epithelial linings

Endodermal cells form

–     Digestive tract epithelium

–      Respiratory tract, urinary bladder, urethra

 

week 12

• reproductive organs appear as male or female

• Eyelids are fused

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Month 4

limbs straighten, skeleton ossifies; growth is very rapid

Month 5

• Lower limbs reach final relative proportions

• Movement begins

• hair grown on head

Risk factors of preeclampsia(Toxemia)

–      Multiple fetuses, age over 35, history of hypertension,

–      Vascular diseases, diabetes, lupus

symptoms of preeclampsia(toxemia)

–      excessive weight gain, often with edema or peripheral swelling,

–     Blood pressure more than 140/90 mm Hg