<prompt> Parafolliculars gland of thyroid developed fromEctodermMesodermEndodermNeural crest  <response>: D. i.e. Neural crest 320 - I.B.S 8,h Derivatives of Endoderm Glandsa Endocrine: Thyroid, Parathyroid, Thymus , Islets of langerhansb Exocrine: Liver, Pancreas, Glands in wall of GIT, greater part of prostate except inner glandular zone and its female homologous The superior parathyroid glands arise from caudal pharyngeal complex, the complex probably also gives origin to the parafollicular cells of the thyroid. Which may represent the ultimo branchial body of lower animals. C- cells parafollicuiars, constitute and endocrine system which are derived from neural crest and are found in thyroid, parathyroid and in thymus 544- Rana-shinde 7thNEURAL -CREST - DERIVATIVES 273-74- IBS 8th1. The neurons of the spinal posterior nerve root ganglia2. The neurons of the sensory ganglia of the 5, 7, 8, 9 and 10th cranial nerves.3. The Schwann cells that form the neurolemmal sheaths of all peripheral nerves4. The neurons of the sympathetic ganglia5. The specific cells of the adrenal medulla6. Chromaffin tissue7. The pigment cells melanoblasts of the skin8. The pia mater and arachnoidmater are also, probably, derived from the neural crest9. The mesenchyme of the dental papillae odontoblast Some diseases and syndromes are associated with disturbances of the Neural crestHirschsprungs disease aganglionic megacolon. Aorticopulmonary septal defects of heart. Cleft lip, cleft palate, frontonasal dysplasia, neurofibromatosis, tumours of adrenal medulla, albinism 