46. The Nose

Question 1

Blood supply of external nose?

Answer 1

Ophthalmic - ant and post ethmoidal

Maxillary - sphenopalantine and greater palantine

Facial - sup labial and lateral nasal

Question 2

Nerve supply of external nose?

Answer 2

Branches of CNV1 and V2 (alae)

Question 3

Function of conchae?

Answer 3

Warm and filter air

Turbulence - ‘turbinates’

Question 4

Which sinuses drain into the middle meatus?

Answer 4

Frontal
Anterior ethmoidal
Middle ethmoidal
Maxillary

Question 5

Which sinus drains into the superior meatus?

Answer 5

Posterior ethmoidal

Question 6

Which sinus drains into the spheno-ethmoidal recess?

Answer 6

Sphenoidal

Question 7

Innervation of frontal sinus?

Answer 7

CNV1 supraorbital

Question 8

Innervation of sphenoidal sinus?

Answer 8

CNV1 posterior ethmoidal

Question 9

Innervation of maxillary sinus?

Answer 9

CNV2 superior alveolar

Question 10

Innervation of ethmoidal sinus?

Answer 10

CNV1 nasociliary

Question 11

Which arteries are found on the lateral wall of the nose? (5)

Answer 11

Anterior ethmoidal 
Posterior ethmoidal 
Sphenopalantine
Lateral nasal 
Greater palantine

Question 12

Which arteries are found on the medial wall of the nose? (5)

Answer 12

Anterior ethmoidal 
Posterior ethmoidal 
Sphenopalatine
Septal branch of superior labial 
Greater palantine

Question 13

General nerve supply of lateral wall of nose?

Answer 13

Anterior 1/2 - CNV1

Posterior 1/2 - CNV2

Question 14

Venous drainage of the nose?

Answer 14

Facial
Sphenopalatine
Ophthalmic