The Nose And Paranasal Sinuses

Question 1

Preform aperture is formed by

Answer 1

Nasal bones
Frontal processes of maxilla
Nasal part of frontal bone
Maxilla (lower part)

Question 2

Columella is formed by

Answer 2

Alar cartilages

Question 3

External nose arteries

Answer 3

*Facial Artery
lat nasal and septal

*Opthalmic artery
dorsal nasal

*Maxillary artery
Infraorbital

Question 4

Veins of external nose

Answer 4

Facial
Opthalmic

Question 5

Nerves of external nose

Answer 5

Infraorbital n
External nasal n
Infratrochlear

Question 6

Opthalmic v and facial v drain into

Answer 6

Internal jugular vein

Question 7

Medial wall

Answer 7

formed by nasal septum
perpendicular plate of ethmoid bone (superoposterior)
vomer (inferoposterior) septal cartilage (anterior)

Question 8

Floor

Answer 8

palatine process of maxilla
horizontal plate of the palatine bone
Hard palate

Question 9

Roof

Answer 9

Nasal
Frontal
Ethmoid Sphenoid

Question 10

Lateral wall

Answer 10

➢ Maxilla
➢ Lacrimal bone
➢ Ethmoid bone
➢ Infeior concha
➢ Perpendicular plate of the palatine bone
➢ Sphenoid bone

Question 11

Nasal Cavity - Arteries

Answer 11

Sphenopalatine a.
conchae, meatus, septum

Ophthalmic a.
ant. & post. ethmoidal branches
roof

Facial Artery
Superior labials

Question 12

Network of arteries in the front nasal cavity

Answer 12

Kiesselbach’s plexus

Question 13

Nasal Cavity - Veins

Answer 13

facial, sphenopalatine, ophthalmic vv.

Question 14

Nasal Cavity- Nerves

Answer 14

Sensory from ophtalmic nerve(V1)
Ant ethmoidal nerve
Post ethmoidal nerve

Sensory from maxillary nerve(V2)
Nasopalatine nerve
Greater&lesser palatine nn
Lateral nasal nn

Parasymphatics •
Facial n (CN VII)

Taste(minimal along palate)
Facial n (CN VII)

Smelling(olfaction) Olfactory n (CN I)

Question 15

Para nasal sinuses are innervated by

Answer 15

Trigeminal n

Question 16

Pituitary galnde

Answer 16

Sphenoid sinusten gir