Branchial Pouches: 1st Pouch
- Endoderm Lines the Auditory Tube
- Middle Ear Cavity
- Eustachian Tube
- Mastoid Air Cells
Branchial Pouches: 2nd Pouch
Branchial Pouches: 3rd Pouch
- Separates into Dorsal and Ventral Wings
- Dorsal Wings
- Inferior Parathyroid Glands
- Ventral Wings
- Thymus
Branchial Pouches: 4th Pouch
- Separates into Dorsal and Ventral Wings
- Dorsal Wings
- Superior Parathyroid Glands
- Ventral Wings
- Parafollicular (C) Cells of Thyroid Gland
- Formed by Endoderm