Tidal Volume: regular breaths.
Vital Capacity: maximum air you can breath out.
Residual Volume: amount of air you have left.
Expiratory Reserve Volume: the air you can breath out on top of your regular breath.
Inspiratory Reserve Volume: the air you can breathe in on top of your regular breath.
Procedure:
1. Reset the dial on top of the spirometer to 0L.
2. Using the spirometer and the sterilized mouthpiece, take a very deep breath and exhale forcefully through the mouthpiece. The dial will indicate the volume of air exhaled.
3. Keep your mouthpiece while your partner tests their vital capacity, and then try again.
4. Record results below.
Observations:
NAME VITAL CAPACITY (L)
Raffy 3400L
Identify the female in the class with the greatest vital capacity:
Not sure
Identify the male in the class with the greatest vital capacity:
Karanveer/ Harsh
Questions:
1. A normal tidal volume is only 500mL because that is the average amount of air inspired during relaxed and regular breathing.
2. The rising amount of CO2 in the blood stream will lower the pH. The medulla oblongata will sense these changes and increase the ventilation rate.
3. Activities such as cardiovascular endurance increase the amount of CO2 entering the blood stream thus triggering medulla oblongata.
4. Four factors affecting a persons vital capacity are, their fitness level, height, sex, and body size.
5. When you exercise your lungs need more vital nutrients and in order to provide them with all the required nutrients the lungs expand more so they are able to distribute it all correctly.
6. If there is no air left in the lungs the lungs become deflated. To prevent the deflation aka a collapsed lung a certain amount of air has to reside in the lungs to fill the space.
2. The rising amount of CO2 in the blood stream will lower the pH. The medulla oblongata will sense these changes and increase the ventilation rate.
3. Activities such as cardiovascular endurance increase the amount of CO2 entering the blood stream thus triggering medulla oblongata.
4. Four factors affecting a persons vital capacity are, their fitness level, height, sex, and body size.
5. When you exercise your lungs need more vital nutrients and in order to provide them with all the required nutrients the lungs expand more so they are able to distribute it all correctly.
6. If there is no air left in the lungs the lungs become deflated. To prevent the deflation aka a collapsed lung a certain amount of air has to reside in the lungs to fill the space.
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