WK 3: Oral Facial Growth

Question 1

What weeks does the embryonic development of the face occur

Answer 1

4-10

Question 2

What branch does the Maxilla and mandible form from

Answer 2

Brachial arch 1 (Mandibular arch)

Question 3

what brachial structure does the nose form from

Answer 3

The frontal promenance

Question 4

what muscles are derived form the 1st Brachial arch

Answer 4

Muscle of mastication, Anterior belly of Digastric

Question 5

what muscles are derived from the 2nd brachial arch

Answer 5

Facial expression muscles and the posterior belly of digrastric

Question 6

What processes form the primary palate

Answer 6

It is the fusing of the Maxillary process and the medial nasal processes.

Question 7

describe the neurovascular structures supplying the primary palate

Answer 7

Nasopalatine nerve and artery.

Question 8

What processes form the Secondary palate

Answer 8

Fusing of the outgrowths of the maxillary process (secondary palatal shelves)

Question 9

What is a cleft lip

Answer 9

failure of the maxillary and medial nasal processes to fuse (primary palate)

also involves the lip and alveolus

Question 10

what is a cleft palate

Answer 10

failure of the palatal shelves fusing (secondary palate)

Question 11

describe the aetiology of clefts

Answer 11

Genetic and environmental factors

retinoids (acne creme), smoking, alcohol

Question 12

what is taken by pregnant women as a preventative measure against clefts

Answer 12

folic acid