Nose and Nasal Cavity

Question 1

Names of nasal processes?

Answer 1

Frontal, maxilla and nasal

Question 2

Names of nasal bones? - mainly composed of (names)?

Answer 2

Nasal bones and maxilla

Cartilage (septal, lateral process of septal and the lateral crus of major alar cartilage)

Question 3

Name of the anterior bony opening?

Answer 3

Piriform aperture

Question 4

Conchae definiton?

Answer 4

Are curved shelves of bone that project into the nasal cavity

Question 5

What are the 4/5 bones of the nasal cavity?

Answer 5

Maxilla: alveolar, palatine and frontal process
Frontal: above nasal holds sinus
Ethmoidal: form the middle and superior conchae
Sphenoidal: lateral and medial plates of pterygoid process + sinus
Inferior nasal concha

Question 6

Name the meatuses?

Answer 6

Superior, middle and inferior

Question 7

Middle meatus - content? drainage?

Answer 7

Ethmoidal infundibulum - drains frontal sinus and anterior ethmoidal cells)
Hiatus semilunaris - semicircular groove into which the frontonasal duct opens
Ethmoidal bulba - rounded elevation superior to hiatus
Maxillary sinus drainage

Question 8

Inferior meatus - content? drainage?

Answer 8

Nasolacrimal duct

Question 9

Superior meatus - content? drainage?

Answer 9

Sphenoidal sinus via sphenoethmoidal recess

Question 10

Definition of Kiesselbach area?

Answer 10

Anastomosis of the 5 arteries

Question 11

Arterial supply to the nasal cavity - maxillary branches? ophthalmic branches?

Answer 11

Maxillary: greater and sphenopalatine
Ophthalmic: posterior and anterior ethmoidal

Question 12

Venous drainage of the nasal cavity - Emissary? sphenopalatine? ethmoidal branches?

Answer 12

Emissary: via foramen caecum to superior sagittal sinus
Sphenopalatine: sphenopalatine foramen to pterygoid plexus
Ethmoidal: via ophthalmic or facial

Question 13

Nerve supply to the nasal cavity - olfaction? somatic sensation?

Answer 13

Olfaction via olfactory
General sensation:
- ophthalmic branch to anterior ethmoidal nerve
- maxillary branch to nasopalatine, infraorbital, posterior lateral nasal branches of greater palatine

Question 14

Name the paranasal sinuses

Answer 14

Frontal, Maxillary, Ethmoidal (anterior, middle and posterior) and Sphenoidal

Question 15

Drainage of the meatuses?

Answer 15

Superior:
- posterior ethmoidal
Middle:
- anterior and middle ethmoidal, frontal and maxillary
Inferior: 
- nasolacrimal duct