Nose

Question 1

The functions of the nose includes

Answer 1

olfaction (smelling), respiration
(breathing), filtration of dust, humidification of inspired air, and reception and
elimination of secretions from the paranasal sinuses and nasolacrimal ducts

Question 2

The main
components of the nasal septum are .

Answer 2

the the ethmoid,
the vomer, and the septal cartilage

Question 3

The bony part of the nose consists of the

Answer 3

nasal bones,
frontal processes of the maxillae,
the nasal part of the frontal bone and its nasal spine,
and the bony parts of the nasal septum.

Question 4

The cartilaginous part of the
nose consists of five main cartilages:

Answer 4

two lateral cartilages,
Two alar cartilages,
and one septal cartilage

Question 5

The _____cartilages are free and movable

Answer 5

The U-shaped alar cartilages are free and movable

Question 6

The
septum broadly consist of ___&___part.

Answer 6

bony part and a soft mobile cartilaginous part.

Question 7

The nasal septim main components are

Answer 7

The vomer, ethmoid bone and septal cartilage

Question 8

_____ lines the nasal cavity, except for the nasal vestibule, which is
lined with _____

Answer 8

Mucosa
Skin

Question 9

All the muscles attached to the external part of the nose is innervated by

Answer 9

Facial nerve

Question 10

The superior concha is small and anterior to the
_____,

Answer 10

sphenoidal sinus

Question 11

and the middle concha has an angled inferior
border and ends inferior to the sphenoidal sinus

Question 12

The inferior two thirds of the nasal
mucosa is the ______ and the superior one third is the ____

Answer 12

respiratory area,
olfactory area

Question 13

What are the boundaries of the nose

Answer 13

The Roof: Narrow and formed by forntonasal, ethmoidal, sphenoidal

Floor:Palatine process of the maxilla

Medial: nasal septum

Lat: nasal concha

Question 14

The nasal cavity is therefore divided into five passages which are?

Answer 14

A posterosuperiorly placed spheno-ethmoidal recess
Three laterally located nasal
meatus (superior, middle, and inferior), and
A medially placed common nasal
meatus into which the four lateral passages open.

Question 15

The middle and superior conchae are medial processes of the __ bone.

Answer 15

ethmoid

Question 16

The _____ concha is the
longest and broadest of the conchae and is formed by an independent bone (of
the same name,

Answer 16

inferior concha

Question 17

The spheno-ethmoidal recess, lying ____ to the superior concha,

Answer 17

superoposterior

Question 18

Which of the nasal meatus is longest and broader?

Answer 18

The middle

Question 19

The anterosuperior part of ______ nasal meatus leads
into a funnel-shaped opening, the ethmoidal infundibulum through which it communicates with the frontal sinus

Answer 19

Middle meatus

Question 20

frontonasal duct runs from

Answer 20

The frontal sinus to ethmoidal infrondibulum to middle meatus

Question 21

The bulla is formed by_____ that
form the ethmoidal sinuses.

Answer 21

middle ethmoidal cells

Question 22

What’s the blood supply to the nose

Answer 22

The skin of the external nose receives arterial supply from branches of the ••maxillary and ••ophthalmic arteries

The septum and alar cartilages receive additional supply from the
•angular artery and ••lateral nasal artery. These are both branches of the facial artery

Question 23

The nasal cavity extends from the ___ to______and has three divisions:

Answer 23

vestibule of the nose to the nasopharynx,

Vestibule
Respiratory region
Olfactory region

Question 24

What’s nasal concha

Answer 24

These are curved shelves of bone projecting at the lateral wall of the nasal cavity

Question 25

Functions of concha

Answer 25

increase the surface area of the nasal cavity They also disrupt the fast, laminar flow of the air, making it slow and turbulent The air spends longer in the nasal cavity, so that it can be humidified.

Question 26

___,____,___sinuses open into the middle meatus.

Answer 26

The frontal, maxillary and anterior ethmoidal

Question 27

The posterior ethmoidal sinuses open out at the level of the ____& meatus. The middle ethmoidal sinuses empty out onto

Answer 27

superior meatus ethmoidal bulla.

Question 28

The only structure not to empty out onto the lateral walls of the nasal cavity is the ________. It drains onto the ______.

Answer 28

sphenoid sinus posterior roof

Question 29

In addition to the paranasal sinuses, other structures open into the nasal cavity are? Function And they empty into

Answer 29

Nasolacrimal duct – acts to drain tears from the eye. It opens into the inferior meatus. Auditory (Eustachian) tube – opens into the nasopharynx at the level of the inferior meatus. It allows the middle ear to equalise with the atmospheric air pressure.

Question 30

What's incisive canal And function

Answer 30

incisive canal is a pathway between the nasal cavity and the incisive fossa of the oral cavity. It transmits the nasopalatine nerve and greater palatine artery.

Question 31

The nose receives blood from both the internal and external carotid artery

Question 32

Internal carotid branches of the nose

Answer 32

Anterior ethmoidal artery Posterior ethmoidal artery Both branches of ophthalmic artery

Question 33

Externall carotid branches of the nose

Answer 33

Sphenopalatine artery Greater palatine artery Superior labial artery Lateral nasal arteries

Question 34

The innervation of the nose can be functionally divided into ____&____innervation

Answer 34

special: olfactory and General sensory innervation to the septum and lateral walls is delivered by the nasopalatine nerve (branch of maxillary nerve) and the nasociliary nerve (branch of the ophthalmic nerve).

Question 35

The paranasal sinuses are formed during development by the nasal cavity eroding into the surrounding bones

Question 36

List the para nasal sinuses

Answer 36

2 Frontal (most superior) Sphenoid Ethmoid Maxillary sinuses

Question 37

Frontal sinus Drainage is via the ____

Answer 37

frontonasal duct

Question 38

Sphenoid Sinuses open into the nasal cavity via

Answer 38

spheno-ethmoidal recess.

Question 39

There are ____ ethmoidal sinuses and they open into

Answer 39

3 Ant. Into middle meatus Mid. Into middle Pst. Into superior meatus

Question 40

Among the para nasal sinuses which is largest

Answer 40

Maxillary sinus

Question 41

Maxillary sinus is a potential pathway for spread of infection 

Question 42

Which of the sinus can be used to access the pituitary gland

Answer 42

Sphenoid sinus

Question 43

Inflammation of the maxillary sinus can cause toothache

Question 44

Muscle of the nose

Answer 44

procerus : originates in the fascia overlying the nasal bone and lateral nasal cartilage, inserting into the inferior forehead. Contraction can depress the medial eyebrows, and wrinkles the skin of the superior dorsum. The transverse portion of the nasalis muscle assists the procerus muscle in this action