DEVELOPMENT OF FACE
THE DEVELOPMENT OF FACE
The face develops from 5 swellings that form around the primitive mouth (stomodeum).
- single fronotonasal process
- paired maxillary process
- paired mandibular process
- FRONTONASAL processes forms: forehead ,external nose,nasal cavity,nasal septum and philtrum of lip.
- MAXILLARY process forms : lateral parts of upper lip and upper part of cheek
- MANDIBULAR process forms : lower lip and lower part of cheek .