Face and Palate development Flashcards Preview

BDS2 ANATOMY > Face and Palate development > Flashcards

Flashcards in Face and Palate development Deck (21)
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1

at approximately what age in utero does the development of the face occur?

4-8 weeks in utero

2

at approximately what age in utero does the formation of the palate occur?

6-10 weeks in utero

3

what is the earliest bone laid down in the skull & when does this occur in utero?

- mandible
- 6/7 weeks

4

what nerve supplies structures derived from the first pharyngeal arch?

trigeminal nerve

5

what nerve supplies structures derived from the 3rd pharyngeal arch?

glossopharyngeal nerve

6

what cranial nerve supplies the structures derived from the second pharyngeal arch?

facial nerve

7

what problem causes the development of a facial cleft?

failure of fusion of any of the swellings can result in a facial cleft

8

what are the most common clefts & facial defects to occur?

cleft lip & palate

9

what causes cleft lip?

failure of fusion of the maxillary prominence with the medial nasal processes

10

what causes cleft palate?

failure of fusion of the two palatal shelves at the midline

11

what cleft defect occurs more in females than males and why?

cleft palate, palatal shelves fuse at later date in females

12

what cleft defect occurs more in males than in females?

cleft lip

13

what environmental factors may increase the change of a cleft abnormality occurring?

- smoking
- alcohol intake
- viral infection
- drugs

14

what problems may babies/children have due to cleft lip or cleft palate?

- struggle to breastfeed/feed from bottle
- more vulnerable to ear infections
- dental & speech problems

15

at what age should cleft lip repairs ideally be done?

3-6 months

16

at what age should cleft palate repairs be done?

6-12 months

17

what adult facial features develop from the frontonasal prominence

- forehead
- bridge of nose

18

what adult facial features drive from the medial nasal prominence?

- midline of nose
- philtrum upper lip

19

what adult facial feature derives from the lateral nasal prominence?

alae of nose

20

what adult facial features are derived from the maxillary prominence?

- cheeks
- lateral upper lip

21

what adult facial features are derived from the mandibular prominence?

- lower lip
- jaw