Inferior parathyroid gland develops from:
Ans. C Branchial pouch 3rdRef: Netter's Essential Histology, 2nd ed. pg. 227* Third branchial pouch forms the Thymus and Inferior parathyroid glands.* Fourth branchial pouch forms superior parathyroid glands and ultimobranchial body.* Aberrant development of third and fourth branchial pouches results in Di-George syndrome. It leads to thymic and inferior* parathyroid gland hypoplasia. The infant develops recurrent pneumonia episodes and hypocalcemia.* 2nd branchial pouch forms tonsils.* 1st branchial pouch ventral part forms tongue* 1st branchial pouch dorsal part forms tub tympanic recess, Eustachian tube, middle ear cavity and inner part of Eustachian tube.
Branchial arch 3rd
Branchial arch 4th
Branchial pouch 3rd
Branchial pouch 4th
Embryology