词条	Derivatives of primary germ layers
释义	Derivatives of primary germ layers Table Derivatives of primary germ layers Ectoderm epidermis cutaneous derivatives epithelium of: mouth; oral glands nasal passages sense passages central nervous system peripheral nervous system hypophysis; suprarenal medulla Mesoderm epithelium of: circulatory system spleen; lymph nodes urogenital system body cavities connective tissues; blood; bone marrow muscular tissues skeletal tissues suprarenal cortex Endoderm epithelium of: pharynx thyroid; thymus parathyroid digestive tube; liver; pancreas larynx; trachea; lungs urinary bladder; urethra vestibule; vagina See as table:
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