Development of Face and Palate

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What is the primary palate?

A part lying anterior to the incisive fossa (correct)

A part lying posterior to the incisive fossa

The entire hard palate

The entire soft palate

What is the structure that gives rise to the formation of maxillary and mandibular processes?

Branchial arch

First pharyngeal arch (correct)

Stomodaeum

Fronto-nasal process

When does the development of the secondary palate begin?

Early in the 6th week (correct)

Early in the 7th week

Early in the 8th week

Early in the 5th week

How many facial primordia appear as prominences around the stomodeum?

5 Signup and view all the answers

What is the origin of the lateral palatine process?

The internal aspect of the maxillary processes Signup and view all the answers

What is the structure that sinks below to form nasal pits?

Nasal placodes Signup and view all the answers

What is the direction of growth of the lateral palatine processes in the beginning?

Inferomedially Signup and view all the answers

What is the structure that gives rise to the formation of the nose and nasal cavities?

Nasal placodes Signup and view all the answers

What is the result of the fusion of the lateral palatine processes and the nasal septum?

Formation of the hard palate Signup and view all the answers

What is the structure that develops from the cranial part of the first branchial arch?

Maxillary process Signup and view all the answers

When is the fusion with the nasal septum completed?

By the 12th week Signup and view all the answers

What is the structure that develops from the caudal part of the first branchial arch?

Mandibular process Signup and view all the answers

How many weeks into embryonic development do the nasal placodes form?

4-5 weeks Signup and view all the answers

What forms the posterior part of the secondary palate?

The soft palate Signup and view all the answers

What is the origin of the anterior 2/3 of the tongue?

1st pharyngeal arch Signup and view all the answers

What is the structure that gives rise to the formation of the face?

All of the above Signup and view all the answers

What does the fronto-nasal prominence form?

The forehead and the bridge of the nose Signup and view all the answers

What does the maxillary prominence form?

The upper cheek regions and most of the upper lip Signup and view all the answers

What does the mandibular prominence form?

The chin, lower lip, and lower cheek regions Signup and view all the answers

What do the lateral nasal prominences form?

The alae of the nose Signup and view all the answers

What does the intermaxillary segment give rise to?

The philtrum of lip, premaxillary part of the maxilla, and primary palate Signup and view all the answers

When does palatogenesis begin?

At the end of the 5th week Signup and view all the answers

When does the development of the palate get completed?

At the end of the 12th week Signup and view all the answers

What is the most critical period for the development of the palate?

From the end of the 6th week to the beginning of the 9th week Signup and view all the answers

What is the source of the intrinsic muscles of the tongue?

Occipital myoblasts Signup and view all the answers

Which nerve supplies the posterior 1/3rd of the tongue?

Glossopharyngeal nerve Signup and view all the answers

What is the origin of the posterior 1/3rd of the tongue?

Third arch mesoderm Signup and view all the answers

What is the name of the line that indicates the fusion of the anterior 2/3 and posterior 1/3 of the tongue?

Terminal sulcus Signup and view all the answers

What is the nerve supply of the musculature of the tongue?

Hypoglossal nerve Signup and view all the answers

What is the origin of the most posterior part of the tongue?

Fourth arch mesoderm Signup and view all the answers

What is the result of the fusion of the second arch mesoderm and the first arch mesoderm?

Formation of the anterior 2/3 of the tongue Signup and view all the answers

What is the nerve that supplies the most posterior part of the tongue?

Superior laryngeal nerve Signup and view all the answers

What is the origin of the lingual swellings?

Tuberculum impar and two lingual swellings Signup and view all the answers

What is the nerve that supplies the anterior 2/3 of the tongue?

Lingual branch of the mandibular nerve Signup and view all the answers