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Respiratory System - PowerPoint PPT Presentation
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Emphysema. Respiratory System. influenza. Bronchitis. Respiratory System. Functions (Jobs). Get oxygen from environment Remove waste ( carbon dioxide , water) Produce sound. Respiratory System. A person at rest takes an average of 12-15 breaths per minute
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Presentation Transcript
Respiratory System
Functions
(Jobs)
- Getoxygen from environment
- Remove waste (carbon dioxide, water)
- Produce sound
Respiratory System
- A person at rest takes an average of 12-15 breaths per minute
- Your right lung is slightly larger than your left lung
- The surface area of your lungs is about the size of a tennis court
- A sneeze travels faster than a cough (100 mph vs. 60 mph)
- Facts
Respiratory System
- Oxygen (O2) is needed by the cells in the body to stay alive and perform their specific jobs
- Glucose (sugar) is also used to release energy
- Carbon dioxide (CO2) and water (H2O) are created during this process and are waste products that must be removed
- Cellular Respiration
O2 In
CO2 Out
Check Yourself
- In two sentences, summarize cellular respiration.
- Try to write a formula for cellular respiration.
- Cellular Respiration
O2 In
CO2 Out
Respiratory System
- Oxygen breathed into lungs (inhaled)
- Alveoli (air sacs) allow oxygen to move into blood stream
- Red blood cells carry oxygen to cells of body
- Oxygen moves into cells
- Gas Exchange
- (Inhale)
O2 In
Respiratory System
- Carbon dioxide is removed from cells
- Red blood cells carry CO2 to lungs
- Alveoli allow carbon dioxide to leave blood stream
- Carbon dioxide is breathed out of lungs (exhaled)
- Gas Exchange
- (Exhale)
CO2 Out
Respiratory System
- The diaphragm is muscle that controls the movement of air in and out of lungs
- When diaphragm contracts, lungs expand and take in air
- When diaphragm relaxes, lungs contract and push out air
- Breathing
- Breathing
- Simulation
Respiratory System
- The nose warms air filters out particles and adds moisture
- The epiglottis blocks out food and liquids when you swallow
- The trachea directs air down to the lungs
- Other
- structures
Check Yourself
- In a few sentences, summarize the path that air takes and what happens to it on the way to the lungs.
- What do you think would happen if your epiglottis didn’t close the stomach off all the way when you breathed in?
Respiratory System
- Bronchitis
- Bronchial passages within the lungs narrow & then become clogged with mucus.
- Emphysema
- Alveoli within the lungs become damaged or destroyed preventing the effective exchange of oxygen & carbon dioxide.
- Lung cancer
- Uncontrolled growth of lung cells that produce tumors that prevent the lung from operating effectively.
- Asthma
- Disorder where the passageways in the lungs swell and become narrow making it difficult for the lungs to take in air
- Diseases
Respiratory System
- Speaking/singing/whispering – air moves over vibrating vocal cords
- Exhale – removes extra moisture
- Coughing/sneezing – remove items from windpipe or lungs
- Sighing
- Yawning
- Hiccupping
- Laughing
- Crying
- Other Jobs
