Head and Neck

Question 1

2nd pharyngeal arch innervated by

Answer 1

CN VII

Question 2

3rd pharyngeal arch innervated by

Answer 2

CN IX

Question 3

4th pharyngeal arch innervated by

Answer 3

CN X

Question 4

6th pharyngeal arch innervated by

Answer 4

CN X

Question 5

1st pharyngeal arch muscles

Answer 5

Mastication

Question 6

2nd pharyngeal arch muscles

Answer 6

Facial expression

Question 7

1st cleft becomes

Answer 7

External auditory meatus

Question 8

1st pouch becomes

Answer 8

Tubulotympanic recess

Question 9

2nd pouch becomes

Answer 9

Palantine tonsils

Question 10

3rd pouch becomes

Answer 10

Inferior parathyroid

Thymus

Question 11

4 pouch becomes

Answer 11

Superior parathyroid

Ultimobranchial bodies

Question 12

Function of parathyroid

Answer 12

Regulate calcium homeostasis

Question 13

Function of thymus

Answer 13

Site of maturation of T lymphocytes

Question 14

Function of ultimobranchial body

Answer 14

Gives rise to C cells

Question 15

Cleft lip more common in

Answer 15

Boys

Question 16

Cleft palate more common in

Answer 16

Girls

Question 17

Cause of cleft lip

Answer 17

Medial nasal processes fail to fuse with the maxillary processes
Often accompanied by failure of the primary and secondary palate to fuse

Question 18

Cause of cleft palate

Answer 18

Palatine shelves fail to fuse with each other

Question 19

Cause of median cleft palate

Answer 19

Two medial nasal processes fail to merge properly

Question 20

Microstomia

Answer 20

Small mouth

Question 21

Microopthalamia

Answer 21

Small eyes

Question 22

Microtia

Answer 22

Small ears

Question 23

Anotia

Answer 23

No ears

Question 24

Ankyloglossa

Answer 24

Tongue tie

Frenulum holds tongue down too tightly

Question 25

1st pharygeal arch innervated by

Answer 25

CN V