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Respiratory System

Respiratory System. Chapter 11.1. What are its functions?. IT MOVES OXYGEN FROM THE OUTSIDE ENVIRONMENT INTO THE BODY. ALSO REMOVES CARBON DIOXIDE FROM THE BODY. Respiration: process in which oxygen and glucose undergo a complex series of chemical reactions; AKA cellular respiration.

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Respiratory System

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  1. Respiratory System Chapter 11.1

  2. What are its functions? IT MOVES OXYGEN FROM THE OUTSIDE ENVIRONMENT INTO THE BODY. ALSO REMOVES CARBON DIOXIDE FROM THE BODY.

  3. Respiration: process in which oxygen and glucose undergo a complex series of chemical reactions; AKA cellular respiration

  4. Where does the air travel? 1- Nose 2- Pharynx 3- Trachea 4- Bronchi Gases are exchanged in the alveoli 

  5. Cilia: tiny hair-like extensions that move together in a sweeping motion • Pharynx: the throat, part of both the respiratory and digestive system • Trachea: windpipe; a passage through which air moves in the respiratory system

  6. Bronchi- passages that direct air into the lungs • Lung- organ found in air-breathing vertebrates that exchanges oxygen and carbon dioxide with the blood • Alveoli- tiny sacs of lung tissue specialized for the movement of gases between air and blood

  7. How is gas exchanged in the Alveoli? 1-air enters alveoli 2-oxygen passes through the wall of the alveolus 3-then it passes through the capillary wall 4-Oxygen enters blood 5- Carbon Dioxide & water pass from blood into alveoli & TA-DAA ---Gas Exchange!

  8. Do you need muscles to breathe? YES!! • Diaphragm- a large muscle located at the bottom of a mammal’s rib cage that functions in breathing • When breathing, the actions of your rib muscles and diaphragm expand or contract your chest…air flows in or out.

  9. Speaking • Larynx- voice box, located in the top part of the trachea, underneath the epiglottis • Vocal Cords- folds of connective tissue that stretch across the opening of the larynx and produce a person’s voice

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