The Respiratory System Notes Chapter 16 1 Respiratory system’s function is to inhale oxygen and exhale carbon dioxide.

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Presentation transcript:

The Respiratory System Notes Chapter 16 1 Respiratory system’s function is to inhale oxygen and exhale carbon dioxide.

Major Structures 2 (voicebox) (windpipe) pharynx (throat)

Tiny sacs surrounded by capillaries Gas exchange occurs here 3 Alveoli (singular = alveolus)

Oxygen moves from alveoli  blood to be delivered to the body’s cells Carbon dioxide moves from blood  alveoli to be exhaled as waste 4 Alveoli

Cellular Respiration Recall that oxygen is used by cells to break down glucose for energy Carbon dioxide is released from the cells as waste Breathing This oxygen comes from breathing in This carbon dioxide waste is breathed out 5 Breathing & Cellular Respiration

6 Brain Pop: Respiratory System

Common respiratory diseases Asthma causes bronchioles to narrow Cystic fibrosis is genetic; mucus builds up in lungs Severe Acute Respiratory Syndrome (SARS) is caused by a virus Lung cancer, COPD, emphysema and many others often caused from smoking 7 Respiratory Diseases

1.Exercise regularly 2.Eat nutritious foods 3.Drink lots of water 1.Maintain a healthy weight 2.Avoid cigarettes and other carcinogens 8 Keep Your Respiratory System Healthy