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Respiratory System

Discover the vital functions of the respiratory system, which moves oxygen from the environment into the body while removing carbon dioxide. This complex system involves several structures, including the nose, pharynx, trachea, bronchi, and alveoli, where gas exchange occurs. Explore how inhaled air travels, the significance of muscles like the diaphragm in breathing, and the role of the larynx and vocal cords in sound production. Delve into the intricate processes that power our respiratory functions and facilitate life-sustaining processes.

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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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