Nose Nasal Cavites

Question 1

External Nose

Answer 1

Root
Dorsum
tip
Nasal septum
Alae

Question 2

Skeleton of external nose

Answer 2

Bones: nasal, frontal processes of maxillae, nasal part of the frontal bine and its nasal sppine

Question 3

Cartilage of nasal bone

Answer 3

5 main: 2 lateral cartilage, 2 alar cartilage, a septal caritlage

Question 4

Nasal Septum includes

Answer 4

Perpendicular plate of ethmoid
Vomer, spetal cartilage,
small sections of palatine and maxialle caled nasal crests

Question 5

Nasal Cavities pathway

Answer 5

enters anteriorly throughe nares( nostrils)
vestibules are lines with skin and stiff hairs
Vestibules are a cavity situated at the enternace to a hollow
Opens posteriorly into nasopharanx through choanae (funnel shaped openings)

Question 6

Nasal Cavites (mucous Membranes)

Answer 6

firmly bound to adjacent periosteum and perichondrium.

Muscous membranes
eg nasopharanx posterioly paranasal sinuses,
frontal, ethmoid, sphenoid, mazillary)
lacrimal sac and conjuctiva superiorly

Question 7

Boundaries of Nasal cavity (lateral wall)

Answer 7

irregular:
nasal conchae
superior, middle ethmoid
inferior nasal concahe

Question 8

Sphenoethmodial recess?

Answer 8

opening of the sphenoidal sinuses

Question 9

Superior Concha?

Answer 9

opening of the posterior ehtmoidal sinuses

Question 10

Middle concha?

Answer 10

frontal, maxiallry, sinuses
ethmoid (anterior ells, middle cells)

Question 11

Inferior concha

Answer 11

Inferior meatus
nasolacrimal duct (drains tears from lacrimal sac)