How many processes are considered major during facial development so that they become the centers of growth for the face?

Question

Quizplus · Accepted Answer

Facial development depends on the five major facial processes that form during the fourth week and surround the primitive mouth of the embryo: single frontonasal process and paired maxillary and mandibular processes.Thus,these facial processes become the centers of growth for the face.

How Many Processes Are Considered Major During Facial Development So