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Back Assignment Detail Respiratory System SCI Human Biology - 1 Assigned: 10/24 Due: 10/25 Respiratory System pp.170-172

1. In words, trace the path of air into the body. The human breathes in air through the Mouth and nasal passage, it goes down the bronchial tubes like the Trachea It 2. What is the purpose of the respiratory system? it exchanges the carbon dioxide in the blood with oxygen. Everytime we breath in oxygen it oxygenates the blood. without air we would not be alive.

3. What is the difference between the pharynx and the larynx? The Pharynx is connected to the Larynx. the Pharynx is part of the throat situated immediately posteriorto the mouth and nasal cavity.

Describe the following disorders in our words 1. Sinusitis-inflammation of the paranasal sinuses 2. Ear infection (otitis media)-germs and bacteria cause the space around the eardrum to become infected. it gets inflammed. It is usall associated with the common cold. 3. Tonsilitis- inflammation of the tonsils in the mouth it will often cuase a soar throat and a fever 4. Bronchitis-inflammation of the bronchi caused by viruses or bacteria. It may last several ays or even weeks. (coughing, shortness of breath, and wheezing) ocasionally (chest pains, fever, fatigue, or malaise) 5. Pneumonia- illnees of the lungs in which the alveoli ( air-filled sacs of the lung- that absorb oxygen) become inflamed and flooded with fluid. It can result form infection from bacteria, viruses,, fungi, or parasites. ( even physical injury to the lungs) 6. tuberculosis-a commin deadly infection caused by mycobacteria. it most commonly attacks the lungs. it can also infect the cirulatory system, geniourinary system, central nervous system, bonees, and skin. 7. emphysema-is a lung disease often caused by smoking, or inhalation of toxic chemicals. (cuased by loss of elasticity of the lung tissue, from destruction of capillaries feeding the alveoli. 8. asthma-a chronic illness in which the airway ocassionly constricts, becomes inflamed, it is lined with lots of mucus. it has triggers 9. lung cancer- epithelial tssue in the lung frows out of control the smae as regular cnacre just i nthe lungs. 10. What three respiratory disorders are associated with smoking? emphysema, lung cancer, bronchitis