The Nose

Question 1

Into which veins does the nasal cavities drain into?

Answer 1

Facial vein
Pterygoid venous plexus
Cavernous venous sinus

Question 2

What is the innervation to the skin of the nose?

Answer 2

Bridge of nose - CN V1 ophthalmic division (infratrochlear and external nasal branch of anterior ethmoidal)

Alae - CN V2 maxillary division (nasal branches of infraorbital)

Question 3

What is highlighted?

Answer 3

The sphenoethmoidal recess

Question 4

What is the innervation of the ethmoidal sinus?

Answer 4

Nasocilliary nerve of CN V1

Question 5

What bone is highlighted?

Answer 5

The vomer

Question 6

What bone forms the superior and middle concha?

Answer 6

Ethmoid bone

Question 7

What is shown in yellow?

Answer 7

The olfactory bulb

Question 8

What is highlighted?

Answer 8

Maxillary sinus

Question 9

What is this muscle?

Answer 9

Levator labii Superioris Alaeque Nasi

Question 10

What is highlighted?

Answer 10

Superior meatus

Question 11

What is the name of the cartilage which helps to form the shape of the nose?

Answer 11

Alar cartilage

Question 12

Where are the paranasal sinuses found?

Answer 12

Within the frontal, maxillary, ethmoid and sphenoid bones

Question 13

What is highlighted?

Answer 13

The frontal sinus

Can be 2 separate cavities or just one large sinus

Question 14

What is highlighted?

Answer 14

Kiesselbach’s Plexus

Question 15

True or False?

Kiesselbach’s area is found in the lateral wall of the nose

Answer 15

False!

Found in the medial wall where the vessels of the nose anastamose with each other

Question 16

What is the innervation to the frontal sinus?

Answer 16

Supra-orbital nerve of CN V1

Question 17

What arteries supply the nose?

Answer 17

Anterior and posterior ethmoidal arteries (ophthalmic)
Sphenopalatine and greater palatine (maxillary)
Septal branch - superior labial and lateral nasal (facial)

Question 18

What is highlighted?

Answer 18

Superior concha

Question 19

What bones contribute to the lateral wall of the nasal cavity?

Answer 19

Maxilla, Sphenoid, Ethmoid and small part of the frontal bone

Question 20

What bone is highlighted?

Answer 20

The perpendicular plate of the ethmoid bone

Question 21

What is the innervation of the maxillary sinus?

Answer 21

Superior alveolar of CN V2

Question 22

What is the name of the cartilage associated with the midline of the nose, separating the 2 nostrils?

Answer 22

Septal cartilage

Question 23

What is highlighted?

Answer 23

The sphenoid sinus

Question 24

What is highlighted?

Answer 24

Ethmoid sinus

Forms a series of small sacs (or air cells) instead of just one space

Question 25

What is highlighted in this image?

Answer 25

Paranasal sinuses

Question 26

What is the role of the nasal conchae?

Answer 26

To create turbulence of the air inside the nasal cavity and warm it before it passes to the nasopharynx

Question 27

What is the sensory innervation to the walls of the nasal cavity?

Answer 27

Trigeminal nerve - ophthalmic and maxillary divisions

Question 28

What are the external openings of the nose called?

Answer 28

Nares or Nostrils

Question 29

What lines the nasal cavity?

Answer 29

Respiratory epithelium - has cilia and produces mucus to trap any particles and filter the air

Question 30

What is the innervation of the sphenoidal sinus?

Answer 30

Posterior ethmoidal of CN V1