Lucy**+**Respiratory+System

Respiratory System pp.170-172 1. In words, trace the path of air into the body. 2. What is the purpose of the respiratory system? 3. What is the difference between the pharynx and the larynx?
 * THe path if air into the body is: from the nares, nasal cavities, pharynx, glottis, larynx, trachea, bronchi, bronchioles and the lungs.
 * It insures that oxygen enters the body and carbon dioxide exit the body.
 * The pharynx is a funnel-shaped passageway that connects the nasal and oral cavities to the larynx. The pharynx is known at the throat. The larynx is a cartialginour structure that seres as a passageway for air between the pharynx and the trachea. It is located in the back of the neck. Sound is produced in the layrynx so we are able to speak.

Describe the following disorders in our words 1. Sinusitis 2. Ear infection (otitis media) 3. Tonsilitis 4. Bronchitis 5. Pneumonia 6. tuberculosis 7. emphysema 8. asthma 9. lung cancer 10. What three respiratory disorders are associated with smoking?
 * An infection of the sinuses. When the opening of the sinusitis is blocked sinusitis occur.
 * It is an infection in the middle of the ear. An ear infection can cause, loss of hearing, fever and a sense of fullness.
 * When the tonsils are infected. When they cause inflammation it spreads to the middle of the ear.
 * It is an inflammation of the bronchial tubes or bronchi. Those tubes bring air into the lungs. The body may have redness, swelling and pain.
 * It is an inflammation or infection of the lungs. It is caused by bacteria or a virus.
 * It is a disease that is infectious. The disease is from an infection called Mycobaterium tuberculosis. When a person inhales this infection they are prone to get tuberculosis. This disease harms the lungs but it may occur in another part of the body.
 * It is a lung disorder that reduced the total surface area for gas exchange due to the bursting of the alveolar walls.
 * it is a condition when bronchioles constrict and makes breather difficult.
 * It is a malignant growth that develops in the bronchi.
 * Lung cancer
 * Asthma
 * Emphysema