Sunday, April 28, 2013

Organs derived from germ layers of embryo


Ectoderm
Mesoderm
Endoderm
Skin (epidermis) and their pigment cells, hairs, nails.
Connective tissues, superficial and deep fascia, ligaments, tendons, dermis of skin (from dermatotome)
Epithelial part of mouth, some part of palate, tongue, tonsils, pharynx, oesophagus, stomach, small and large intestines, upper part of anal canal.
Mucosal membrane of lips, cheek, gums, basal portion of mouth, some parts of palate, nasal apertures.
Specialized connective tissues like adipose tissue, reticular tissues, bones, cartilages.
Pharyngo-tympanic tube, middle ear, inner face of tympanic membrane
Lower part of anal canal.
Teeth
Respiratory tract
Glans penis.
All muscles
Gall bladder, pancreatic duct
Labia majora and outer part of labia minora.
Heart, all blood vessels and blood cells
Major portion of urinary bladder, complete urethra of female posterior part, complete urethra of male except anterior and posterior part.
Anterior epithelium of cornea, epithelium of conjunctiva, ciliary body and iris of eyes, lens.
Kidneys, ureters, urinary bladder, posterior urethra of female, upper glandular part of prostate
Whole inner part of vagina including inner face of labia minora
Outer face of tympanic membrane, epithelium of labyrinth.
Ovaries, uterine tubes
Testes, epididymis, vas deferens and seminal vesicles, ejaculatory duct
Glands:
Exocrine: Liver, pancreas
Endocrine: Thyroid, parathyroid, thymus, islets of Langerhans
Glands of gastro-intestinal tract, major part of prostate etc.
Glands:
Exocrine: Sweat glands, sebaceous glands, parotid glands, mammary glands, lachrymal glands
Endocrine: Hypophysis cerebri, adrenal medulla
Pleural cavities, peritoneal cavity and pericardial cavity

Enamel of teeth.
Joints

Nervous system.
Cornea, sclera, choroid, ciliary body and iris related material


Microglia, dura mater etc




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