Development of palate, nasal and oral cavity

Question 1

What is Mandibulofacial Dysostosis (Treacher-collins Syndrome)

Answer 1

This is a developmental disorder characterized by craniofacial deformities, including malformed or absent ears, zygomatic and mandibular hypoplasia and downward slanting eyes exhibiting ptosis of the lateral eyelids as shown below.

Question 2

What structures form the hard palate

Answer 2

Palatine process of the maxilla and horizontal plate of the palatine bone

Question 3

What separates the palatine process of the maxilla from the horizontal plate of the palatine bone

Answer 3

Cruciform suture

Question 4

What is the cruciform suture made up of

Answer 4

Intermaxillary suture
Interpalatine suture
Palatomaxillary suture

Question 5

The nasal septum separates both nasal cavities in the 6th week True or FALSLE?

Answer 5

True

Question 6

Where does the primary palate and the primary nasal septum derive from

Answer 6

Frontonasal process

Question 7

The palate is developed in which week

Answer 7

8th

Question 8

What fuses together to form the soft palate

Answer 8

Dorsal extremities of the palatine process

Question 9

Ossification of the palatine bone commences in the 7th-8th week True of False

Answer 9

True

Question 10

2 functions of the hard and soft palate

Answer 10

1. For the roof of the mouth
2. form the floor of the nasal cavity thus obliterating the nasal cavity from the oral cavity

Question 11

Which 2 muscles help to alter the quality of voice

Answer 11

Opposing pull of the levator palatini and posterior head of the palatopharyngeus

Question 12

What is Holoprosencephaly

Answer 12

Development abnormalities characterized by the loss of midline structures