Cleft Lip

Question 1

Normal upper lip fusion

Answer 1

Between medial nasal, lateral nasal (palatal shelves) and maxillary processes

Question 2

Cleft lip types

Answer 2

• soft palate only
• hard and soft palate
• soft palate to the lip
• complete bilateral clefts

Question 3

Normal palate development- primary palate

Answer 3

fusion of the two medial nasal prominences in midline, driven via growth of maxillary prominences which push nasal prominences towards the middle

Question 4

Normal palate development-secondary palate

Answer 4

-forms via outgrowths of the maxillary prominences (palatine shelves)

Question 5

Paraxial mesoderm contributes to which structures in the head and neck?

Answer 5

skeletal muscles of the head and neck, bones of the base of the skull