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Functions and disorders of the nose
- 1. 3.04 Functions and disorders of the nose 3.04 Understand the functions and 1 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 2 disorders of the sensory system
- 3. Understanding the functions of the nose 3.04 Understand the functions and 3 disorders of the sensory system
- 4. Understanding the functions of the nose Nares (nostrils) Nasal cilia 3.04 Understand the functions and 4 disorders of the sensory system
- 5. Understanding the functions of the nose Nasal septum Olfactory receptors Turbinates 3.04 Understand the functions and 5 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 6 disorders of the sensory system
- 7. Smell Trivia… 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 7 disorders of the sensory system
- 8. Function of the nose: Smell Pleasant or unpleasant? 3.04 Understand the functions and 8 disorders of the sensory system
- 9. Function of the nose: Smell Smell Activity What is that smell? 3.04 Understand the functions and 9 disorders of the sensory system
- 10. Disorders of the nose Deviated nasal septum What causes a deviated nasal septum? What is its impact on health? How does a septoplasty relieve symptoms? 3.04 Understand the functions and 10 disorders of the sensory system
- 11. Disorders of the nose Nasal polyps What are nasal polyps? What causes nasal polyps? How are they treated? 3.04 Understand the functions and 11 disorders of the sensory system
- 12. Disorders of the nose Rhinitis Define rhinitis. Rhin- -itis What causes rhinitis? What are the symptoms? How is rhinitis treated? 3.04 Understand the functions and 12 disorders of the sensory system
- 13. 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 13 disorders of the sensory system
- 14. 3.04 Functions and disorders of the nose The End The End 3.04 Understand the functions and 14 disorders of the sensory system
Editor's Notes
- Nares- the two oval openings for air to enter the respiratory system Nasal cilia- entraps and prevents large particles (dust, pollen…) to enter the respiratory system
- Nasal septum- cartilage which divides the nasal cavity into left and right sides Olfactory receptors-located in the upper part of the nasal cavity which is responsible for sending signals to the olfactory bulb Turbinates- three scroll like bones. They increase the surface area for air to pass through. As air is passed through it is filtered, warmed and moistened
- PATHWAY OF SMELL- air enters the nares into either the left or right (separated by the nasal septum). Into the nasal cavity. When the smell passes over the olfactory receptors in the upper nasal cavity, a signal is sent to the olfactory bulb. Nerve activity in smell…the olfactory bulb (which is an extention of the brain) transmits the stimulus to the olfactory nerve to the limbic system, thalamus, and frontal cortex.
- A condition in which there is a bend in the cartilage of the nasal septum. Symptoms result due to a blockage of airflow through one nostril headaches difficulty sleeping loud breathing or snoring dry nose nose bleeds Tx- surgical correction temporary tx is external adhesive strip
- Nasal polyps are soft, painless, noncancerous growths on the lining of your nasal passages or sinuses. They hang down like teardrops or grapes. They are caused from chronic inflammation due to asthma, recurring infection, allergies, drug sensitivity or certain immune disorders. Small nasal polyps may not cause symptoms. Larger growths or groups of nasal polyps can block your nasal passages or lead to breathing problems, a lost sense of smell, and frequent infections. Medications can often shrink or eliminate nasal polyps, but surgery is sometimes needed to remove them. Even after successful treatment, nasal polyps often return.
- Inflammation of the lining of the nose Caused by allergies, infection, or other factors such as fumes, odors, emotional changes, or drugs Symptoms- nasal congestion, nasal drainage, sneezing, or itching. Tx- eliminating the allergens if possible or reducing them. Antihistimines are effective for short periods of time.