Child with absent thymic shadow and interrupted aortic arch. What structure failed to develop properaly in womb?
Third pharyngeal pouch
What branchial pouch develops into the eustachian tube?
What branchial pouch develops into the epithelial lining of the palatine tonsil?
What three structures are derived from the 3rd branchial pouch?
Thymus, left and right inferior parathyroids
The superior parathyroids are developed from what branchial pouch?
Thymic dysplasia and hypocalcemia are seen in what condition?
DiGeorge, failure of 3rd and 4th branchial pouches
You catch 22 in a pouch?
Cranial nerve VII is developed from what structure?
Branchial Arch 2
A congenital pharyngocutaneous fistula is an aberrent development of what structure?
3rd Branchial Arch; persistence of cleft and pouch results in a fistula between tonsillar areas, yields a cleft in the lateral neck.
The levator veli palantini develops from what structure?