The Airway Anatomy: THE NOSE

Retrieve from Power Point of Sir James A. Lamusao, RTRP

nose

a pyramidal-shaped structure projecting from the

midface made up of bone, cartilage, fibrofatty

tissue, mucous membrane, and skin.

nasal septum

The nose is divided into right and left nasal cavities

by the________

choanae

The posterior portions of the nares open into the

nasopharynx and are referred to as ________

respiration, olefaction, filtration, humidification, reservoir

important functions of the nose

1. frontal

2. ethmoid

3. maxillary

4. nasal passages

5. nostrils

6. external nose

7. septum

identify the following parts

floor, roof, medial and lateral walls

each side of the nose consists of a ____ , ____ and _____ and ______

medial wall

forms by the septum and is made up of

perpendicular plates of ethmoid and vomer bones

and the septal cartilage

cribriform plate

The bony plate forming the superior aspect of the

septum is very thin and descends from the

_________ of the ethmoid bone

lateral walls, conchae or turbinates

have a bony framework attached to which are three

bony projections referred to as ________

roof, olfactory nerves

The _____ supports ________ for smell and separates

the nasal cavity from the cranial cavity above.

nasal bone, cribriform plate of the ethmoid bone, anterior part of the sphenoid bone

roof are formed by?

hard palate

The floor forms the _______, separating the nasal

cavity from the oral cavity below.

palatine process of the maxilla anterior ¾
horizontal plate of the palatine bone posterior ¼

the floor are formed by?

1. septal branch of anterior ethmoidal nerve

2. olfactory nerve

3. nasopalatine nerve

Label the following

1. sphenoid bone

2. maxilla

3. palatine bone

4. vomer

label the following