RESPIRATORY SYSTEM. Functions of the Respiratory System. Take in oxygen Get rid of carbon dioxide Helps with smelling Filters air that is inhaled Produces sounds Rids the body of some water and heat in exhaled air. Organs of the Respiratory System.
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The organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli and lungs.
= 6 liters/min
- Inhalation- Air rushing in- occurs when the atmospheric air pressure is greater than the thoracic cavity air pressure.
Located in the medulla oblongata- This controls the basic rhythm of respiration. During quiet breathing, inhalation lasts 2 seconds and exhalation lasts 3 seconds.
Located in the upper pons- This turns off inspiration before the lungs become too full and pressurized.
Located in the lower pons- This sends stimulatory impulses to increase and activate inhalation. This can be overidden by the pneumotaxic area.
Because of these, elderly people are more susceptible to pneumonia, bronchitis, and emphysema.
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15. Olfactory epithelium