Oral Anatomy and Tooth Development Quiz

Which germ layer forms the enamel of teeth?

• Mesoderm

• Ectoderm

• Endoderm

• Neural crest

The viscerocranium is primarily formed from:

• Paraxial mesoderm

• Lateral plate mesoderm

• Neural crest cells

• Endoderm

The first pharyngeal arch gives rise to all the following except:

• Maxilla

• Mandible

• Zygomatic bone

• Stapes

The muscle of facial expression is derived from which pharyngeal arch?

• First

• Second

• Third

• Fourth

Which cranial nerve is associated with the third pharyngeal arch?

• CN V

• CN VII

• CN IX

• CN X

What forms the intermaxillary segment?

• Maxillary processes

• Mandibular processes

• Medial nasal prominences

• Lateral nasal prominences

The cleft of the secondary palate results from failed fusion of:

• Medial nasal prominences

• Palatine shelves

• Maxillary prominences

• Lateral nasal prominences

The nasal septum originates from which structure?

• Maxillary prominence

• Frontonasal prominence

• Mandibular prominence

• Nasolacrimal groove

The first permanent tooth to erupt is typically the:

• Central incisor

• First molar

• Canine

• Second premolar

Enamel is formed by:

• Ameloblasts

• Odontoblasts

• Cementoblasts

• Fibroblasts