Facial development takes place b/w:
Ans. a. 4-8 week Development of faceFacial development occurs mainly between 4th and 8th weeks, and is induced by migration of cells of neural crest.Five facial primordia appear as prominences of mesenchyme : a frontonasal process, a pair of maxillary processes and a pair of mandibular processes.
4-8 week
8-l0week
12-14week
18-20week