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1. By Ankit Kumar Parvat

2. 
 Your nose, a structure that
sticks out from the middle of
your face, is part of
your respiratory system.
What is the
nose?

3. 
 Your nose is part of your respiratory system. It allows
air to enter your body, then filters debris and warms
and moistens the air. Your nose gives you a sense of
smell and helps shape your appearance. Many
common symptoms affect your nose, such as a stuffy
nose and nosebleed. Other symptoms may need
treatment to keep your nose functioning well.
Nose

4. 
 Your nose is involved in several important bodily
functions:
• Allows air to enter your body.
• Contributes to how you look and how you sound when
you speak.
• Filters and cleans air to remove particles and allergens.
• Provides a sense of smell.
• Warms and moistens air so it can move comfortably into
your respiratory system.
 Your nose is also a prominent aspect of your facial
appearance and your sense of well-being.
What is the function of
your nose?

5. 
 Air conditioning: warming, cleaning and
humidifying the inhaled air
 Add resonance to the voice
 Vocal sounds are also produced in the nasal cavity
thus aiding in vocalisation
 Involved in the special sense of smell
 Central role of the nose in facial appearance
 ??
Functions of Nose & Nasal
Cavities

6. 
• Bone: The hard bridge at the top of your nose is made
of bone.
• Hair and cilia: Hair and cilia (tiny, hairlike structures)
inside your nose trap dirt and particles. Then they move
those particles toward your nostrils, where they can be
sneezed out or wiped away.
• Lateral walls (outer walls): The outer walls of your nose
are made of cartilage and covered in skin. The walls form
your nasal cavities and your nostrils.
• Nasal cavities: Your nose has two nasal cavities, hollow
spaces where air flows in and out. They are lined
with mucous membranes.
Anatomy

7. 
• Nerve cells: These cells communicate with your brain to
provide a sense of smell.
• Nostrils (nares): These are the openings to the nasal
cavities that are on the face.
• Septum: The septum is made of bone and firm cartilage. It
runs down the center of your nose and separates the two
nasal cavities.
• Sinuses: You have four pairs of sinuses. These air-filled
pockets are connected to your nasal cavities. They
produce the mucus that keeps your nose moist.
• Turbinates (conchae): There are three pairs of turbinates
located along the sides of both nasal cavities. These folds
inside your nose help warm and moisten air after you
breathe it in and help with nasal drainage.

8. 
• Allergic rhinitis: Allergic rhinitis (hay fever) can cause
irritation, sneezing, runny nose or stuffy nose.
• Deviated septum: A deviated septum occurs when your
septum is off-center, either at birth or from injury. It can
cause breathing problems, nasal congestion and
headaches.
• Enlarged turbinates: Allergens and irritants can make the
turbinates swell, which can block airflow and affect normal
breathing.
• Injury or trauma: Your nose can be broken or injured,
similar to any other external part of your body.
Conditions and Disorders

9. 
• Infection: An infection can cause many of the same
symptoms as allergic rhinitis. Examples include sinus
infections and the common cold.
• Nasopharyngeal cancer: Your nose can be the site
of head and neck cancer.
• Nasal polyps: Nasal polyps are bumps that can block
airflow or prevent your nose from filtering air.
• Nasal valve collapse: Often caused by an accident or
trauma to your nose, nasal valve collapse is the most
common cause of nasal obstruction.
• Nosebleed (epistaxis): Nosebleeds occur when a blood
vessel in your nose breaks. They are common, and most
aren’t serious.

10. 
• Avoid smoking or breathing in secondhand smoke.
• Don’t remove nose hairs, or do it carefully, because they
filter dirt and debris.
• Drink plenty of water.
• Keep your home clean to reduce the amount of dust and
other allergens you may breathe in. Wash your bedsheets
to remove dust.
• Squirt saline into the nasal cavities to keep them clean and
moist.
• Use a humidifier at home to keep the air moist.
Care

11. 