User talk:Kuya vet

Q;primordia of tongue (Dr/attia): 1- the first 2/3 thirds of tongue come from ectoderm 2- the caudal 1/3 third of tongue come from endoderm 3-muscles of tongue come from mesoderm _____________________________________

Q: fate of pharyngeal pouches (Dr/attia): they are 5 pouches the cavity of all pharyngeal pouches give cavity of pharynx floor of pharynx which give thyroid gland 1- the 1st pharyngeal pouch > tympanic mm and Eustachian tube 2- the 2nd pharyngeal pouch > tonsellar fossa 3- dorsal part of the 3rd and 4th pharyngeal pouches > parathyroid gland 4- ventral part of the 3rd and 4th pharyngeal pouches > thymus 5- the 5th pharyngeal pouch > ultimo bronchial branch _____________________________________