Development of the face

12 important questions on Development of the face

What are the 5 facial prominences that form around the stomedeum at the beginning of week 4?

1. Frontonasal prominence
2. Maxillary prominences (2)
3. Mandibular prominences (2)

What is the 1st step in the development of the face?

Medial merging of mandibular prominences with each other

What does the medial merging of mandibular prominences at the beginning of week 4 achieve?

Establishes...
1. caudal boundary of the primitive mouth 
2. lower jaw and lip
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

Identify the prominences with structures of the face they develop into

A - maxillary prominences = upper cheek, upper jaw, and lateral upper lip
B - mandibular prominences = lower lip and jaw
C - frontonasal prominence = forehead, nose, and philtrum

What happens to the medial nasal processes during face development?

They fuse in the midline in late 7th week to form the intermaxillary process

How is the upper jaw (maxilla) completed?

By fusion of the intermaxillary process with the maxillary prominences on both sides. (late 7th week)

What structure forms when the lateral nasal process fuses with the maxillary prominence?

The naso-lacrimal groove closes, forming the naso-lacrimal furrow

What it the naso-lacrymal furrow a remnant of?

It is a remnant of fusion of the nose with the cheeks

What results from the fusion of the maxillary and mandibular prominences?

lateral boundaries (corners) of the mouth

How is the final shape of the face achieved?

Growth of different structures that have already arose

How does the ear position to the lateral part of the head?

The growth of the mandibular prominence positions the ear to the lateral part of the head

How does the eye move to the frontal position?

The expansion of skull, maxilla, and mandible positions the eyes.

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo