INBDE (Integrated National Board Dental Examination) Practice Exam

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What is the primary palate made from?

Medial nasal prominences
Maxillary prominences
Intermaxillary segment
Lateral nasal prominences

The correct answer is: Medial nasal prominences

The primary palate is made from the medial nasal prominences. During embryonic development, the face forms from the fusion of various prominences derived from the frontonasal process. The medial nasal prominences give rise to the center part of the upper jaw, known as the primary palate. This structure forms the anterior part of the maxilla and includes the four upper incisor teeth. Maxillary prominences give rise to most of the maxilla and the secondary palate. The secondary palate is formed from the fusion of the two palatal shelves, which are derived from the maxillary prominences. The intermaxillary segment refers to the area between the maxillary and mandibular prominences, which includes the primary palate. Lateral nasal prominences contribute to the formation of the sides of the nose.