1. Emphysema
Respiratory System
influenza
Bronchitis

2. Respiratory System Functions (Jobs) Get oxygen from environment
Remove waste (carbon dioxide, water)
Produce sound

3. Respiratory System O2 In CO2 Out
Cellular Respiration
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
O2 In
CO2 Out

4. Check Yourself O2 In CO2 Out
Cellular Respiration
In two sentences, summarize cellular respiration.
Try to write a formula for cellular respiration.
O2 In
CO2 Out

5. Respiratory System O2 In Gas Exchange (Inhale)
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
O2 In

6. Respiratory System CO2 Out Gas Exchange (Exhale)
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)
CO2 Out

7. Respiratory System Breathing
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
Simulation

8. Respiratory System Other structures
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

9. Respiratory System Diseases Other Jobs Emphysema Asthma
Alveoli within the lungs become swollen or destroyed preventing the effective exchange of oxygen & carbon dioxide.
Asthma
Disorder where the passageways in the lungs swell and become narrow making it difficult for the lungs to take in air
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