Nose and Paranasal Sinuses

Question 1

Where in the nasal cavity are the olfactory regions located?

Answer 1

Apex

Question 2

What type of epithelium line the nasal cavity?

Answer 2

Pseudo stratified columnar epithelium

Question 3

Name the three structures that combine to form the nasal septum?

Answer 3

Cartilage
Perpendicular plate of ethmoid bone
Vomer

Question 4

What structure does the olfactory bulb pass through?

Answer 4

Cribiform plate

Question 5

What is the main function of the conchae?

Answer 5

Maximise surface area for air conditioning

Question 6

Name the four paranasal sinuses?

Answer 6

Frontal
Sphenoidal
Ethmoidal
Maxillary

Question 7

Name the largest paranasal sinus?

Answer 7

Maxillary

Question 8

Which sinuses drain into the sphenoethmoidal recess?

Answer 8

Sphenoidal

Question 9

Which sinuses drain into the superior meatus?

Answer 9

Ethmoidal (posterior)

Question 10

Which sinuses drain into the middle meatus?

Answer 10

Ethmoidal (anterior and middle)
Frontal
Maxillary

Question 11

What drains into the inferior meatus?

Answer 11

The nasolacrimal duct

Question 12

Name the vascular branches from the internal carotid which supplies the nose?

Answer 12

Anterior Ethmoidal artery (branch of the opthalmic artery)

Posterior Ethmoidal artery (branch of the opthalmic artery)

Question 13

Name the four vascular branches of the external carotid artery which supply the nose?

Answer 13

Sphenopalatine artery (Maxillary branch)
Greater palatine artery (Maxillary branch)
Superior labial artery (Facial branch)
Lateral nasal artery (Facial branch)

Question 14

Name the region in which epitaxis is most commonly the origin?

Answer 14

Little’s area

Question 15

Which nerve carries the sensation of smell?

Answer 15

CN I - Olfactory

Question 16

Which nerve supplies the general innervation to the nose?

Answer 16

V1 - Opthalmic

V2 - Maxillary

Question 17

Name the branch of V2 which supplies the nasal septum?

Answer 17

Nasopalatine branch of V2

Question 18

Name the branch of V2 which supplies the lateral nasal wall?

Answer 18

Infraorbital branch of V2

Question 19

What does the greater palatine branch of V2 supply?

Answer 19

Hard palate

Posterior inferior nose

Question 20

Name the branch of V2 which supplies the soft palate?

Answer 20

Lesser palatine branch of V2

Question 21

Starting from the pterygopalatine fossa describe the route taken by the greater palatine artery?

Answer 21

Passes onto the roof of the oral cavity via the greater palatine foraman, it then passes forward on the under surface of the palate and up through the incisive foraman to the nasal cavity