Anatomy

Question 1

Blood supply to the external nose

Answer 1

Skin of the external nose — ophthalmic / maxillary
Skin of the lower part of the sputum and ala — facial artery

Question 2

Nerve supply of the external nose :

Answer 2

Ophthalmic nerve — infratrochlear / external nasal branch
Maxillary nerve— infraorbital
Cranial Nerve 5

Question 3

The type of the cartilage making the external nose is

Answer 3

Hyaline cartilage

Question 4

Bones of the external nose

Answer 4

Nasal bone
Frontal process of the maxilla
Nasal part of the frontal bone

Question 5

The nasal part that leads to the nasopharyngeal part

Answer 5

Posterior nasal apertures—- choanae

Question 6

is the area of the nasal cavity lying just inside the nostril.

Answer 6

nasal vestibule

Question 7

The space below each
concha is called

Answer 7

meatus

Question 8

Sphenoethmoidal Recess

Answer 8

• is a small area above the superior concha
• receives the opening of the sphenoid air sinus.

Question 9

Superior Meatus :

Answer 9

receives the openings of the posterior ethmoid sinuses

Question 10

Middle Meatus :

Answer 10

• It has a rounded swelling called the bulla ethmoidalis that is formed by the middle ethmoidal air sinuses, which open on its upper border.
• A curved opening, the hiatus
  semilunaris, lies just below the bulla.
• The anterior end of the hiatus leads into a funnel-shaped channel called the infundibulum, which is continuous with the frontal sinus.

Question 11

A person got a trauma in his nose , what is the suspected artery to be affected

Answer 11

External nose — ophthalmic , maxillary artery
Ala of the nose and the lower part of the sputum — facial artery