1. 3.04 Functions and disorders of the nose
3.04 Understand the functions and disorders of the sensory system

2. 3.04 Understand the functions and disorders of the sensory system
Essential Questions
What are the functions of the sensory system?
What are some disorders of the sensory system?
How are sensory system disorders treated?
How do you relate the body’s communication to the sensory system?
3.04 Understand the functions and disorders of the sensory system

3. Understanding the functions of the nose
Smell
3.04 Understand the functions and disorders of the sensory system

4. Understanding the functions of the nose
Nares (nostrils)
Openings that allow air to enter and exit
Nasal cilia-
Hairs that filter the air
3.04 Understand the functions and disorders of the sensory system

5. Understanding the functions of the nose
Nasal septum
Separates the right and left sides
Olfactory receptors
Provide sense of smell
Turbinates-nasal bones that allow air to move in various directions
3.04 Understand the functions and disorders of the sensory system

6. Understanding the functions of the nose
(A) Pathway of smell
(B) Nerve activity in smell
3.04 Understand the functions and disorders of the sensory system

7. 3.04 Understand the functions and disorders of the sensory system
Smell Trivia…
Did you know???
Perfume
The beginnings of perfume use can be traced back thousands of years to the early Egyptians.
Burning of resins and woods were used for their fragrance during religious ceremonies.
Perfume was developed to attract the goodwill of the gods.
When Tutankhamen’s tomb was discovered, there was still a trace of the strong fragrance detected. He was buried over 3,300 years ago.
3.04 Understand the functions and disorders of the sensory system

8. Function of the nose: Smell
Pleasant or unpleasant?
3.04 Understand the functions and disorders of the sensory system

9. Function of the nose: Smell
Smell Activity
What is that smell?
3.04 Understand the functions and disorders of the sensory system

10. 3.04 Understand the functions and disorders of the sensory system
Disorders of the nose
Deviated nasal septum-a bend in the cartilage of the septum
What causes a deviated nasal septum? Born with or due to injury
What is its impact on health?
Difficulty sleeping, headaches, snoring, dry nose, nose bleeds
How does a septoplasty
relieve symptoms?
Straightens the septum
3.04 Understand the functions and disorders of the sensory system

11. 3.04 Understand the functions and disorders of the sensory system
Disorders of the nose
Nasal polyps-growths in the nasal cavity
Causes: Hereditary or due to
chronic inflammation
Treatment: surgery may be
needed
3.04 Understand the functions and disorders of the sensory system

12. Disorders of the nose Rhinitis-inflammation of the lining of the nose
Define rhinitis.
Rhin- -itis
*What causes rhinitis? Allergies, infection, fumes, emotions, drugs
*What are the symptoms? Nasal congestion, rhinorrhea (drainage), sneezing, itching
How is rhinitis treated? Eliminate the allergens, antihistamines

13. 3.04 Understand the functions and disorders of the sensory system
Disorders of the nose
Rhinoplasty
Aka “nose job”- surgery to reshape the nose;
may make the nose smaller or larger, remove bumps,
indentations, etc.
3.04 Understand the functions and disorders of the sensory system

14. 3.04 Understand the functions and disorders of the sensory system
Essential Questions
What are the functions of the sensory system?
What are some disorders of the sensory system?
How are sensory system disorders treated?
How do you relate the body’s communication to the sensory system?
3.04 Understand the functions and disorders of the sensory system

15. 3.04 Functions and disorders of the nose
The End
3.04 Understand the functions and disorders of the sensory system