Anatomy of Nose

1. N.K.J AYURVEDIC MEDICAL
COLLEGE & P.G. CENTRE, BIDAR.

2. It is an organ of smell.
Passageway for air to
lungs.

3. It is divided into __
a) External Nose
b) Internal Nose
Philtium is a space between
lips and nose.

4. It consists
of_
1. Root
2. Apex
3. Bridge
4. External

5. Consists of a supporting
framework of bone and
Hyaline cartilage.
Lined by mucous membrane.

6. Frontal bone, Nasal bone,
and Maxillae form the bony
framework.
Cartilagenous framework
consist of Septal Nasal
Cartilage, Lateral Nasal
Cartilge and Alar.

8. Nasal septum is the middle
wall of nasal cavity.
It is a large space in the
anterior aspect of the skull.
Inferior to nasal bone.
Superior to oral cavity.

9. Lined with mucous membrane
and muscles.
Anteriorly, merges with
External nose.
Posteriorly merges with
Nasopharynx through two
openings called Internal
nares or Chonae.

10. Each half has_
1. height- 5cm
2. length- 5-7cm
3. roof- 7cm long and 2mm
wide
4. floor- 5cm long and 1.5mm
wide

11. Nasal cavity is divided into_
›Larger and inferior
Respiratory region
›Smaller and superior
Olfactory region.
The respiratory region is
lined with Pseudostratified
ciliated columnar epithelium

12. The anterior portion of nasal
cavity just inside the
nostrils i.e, Nasal vestibule
is surrounded by cartilage.

13. • 4 bones:
• Sphenoid Bone
• EthmoidBone
• FrontalBone
• Nasal Bone
Roof
• Hard part is a bony palate
whichseperates it from the
oral cavity.
Floor

14. Warms and humidifies the
incoming air.
Filters impurities from
inspired air.
Receives secretion from
paranasal sinuses and Naso-
lacrimal duct.