Ultimobranchial gland

 
With Dr Dauzvardis

The dorsal part of  the 6th pouch (or more rightly called caudal pharyngeal complex) develops into 2 bodies, left and right bodies called the ultimobranchial bodies. The bodies contain 'C' cells which invade them from the rhombencephalic neural crest. As the developing thyroid gland migrates downwards towards the caudal pharyngeal complex, the C cells invade the thyroid gland to become the second component of that gland called 'C' cell. It produces calcitonin, (also katacalcin), which is a hypocalcemic principle.


Pharyngeal pouches development video

 

 

 

 

 

 

 

   

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