2. Record your starting pulse: Count the number of beats in 15 seconds
(e.g. Starting pulse = 17 X 4 =68 beats per minute.)
3. Run on spot for 2 minutes.
4. Record your pulse (e.g. Pulse = 21 X 4 = 84 beats per minute.)
5. Record your pulse 1 minute later (e.g. after 1 minute = 18 X 4 = 76 beats per minute.)
When the body needs more oxygen, this is what happens: A.. We breathe deeper. B.. We yawn. C.. We breathe faster. D.. The heart rate increases.
The brain part the measures the amount of CO2 (TOXIN) in the blood is called the MEDULLA OBLONGATA. It is in the brain stem – really old part of the brain. When you have too much CO2 in the blood stream, the medulla oblongata stimulates nerves to move the muscles of the diaphragm and muscles attaching to the rib cage. This causes you to change your breathing until the CO2 levels get back to normal.
Lung Lab PURPOSE: to ……
MATERIALS: elastic band plastic tube 1.5 inch long clear plastic volume bag
METHOD: 1. Using a clock, count the number of breaths you make in one minute. Record this in your observations.
2. Obtain the materials from your teacher. To assemble the volume bag, put the plastic tube inside the end of the volume bag. Make sure the plastic tube still sticks out the end of the bag. This will be the mouth piece through which you will blow air into the bag. Using the elastic band, wrap the elastic around the bag so that the bag is firmly attached to the plastic tube.
3. To do the following volume measurements, make sure the following are done. The volume bag should be laid stretched out completely and flat. The volume bag should be empty of air before doing any measurement. To do this, take your hand and squeeze the bag flat from the end to the plastic mouth piece.
4. The TIDAL VOLUME is the amount of air that moves when you are at rest. This is the amount you breathe in and out normally. To measure tidal volume, make sure the volume bag is empty. Place your mouth around the end of the plastic mouth piece. When relaxed, breathe a normal breath into the volume bag.
5. When done breathing, cover the mouth piece with the end of your hand. While you hold the air in, the other person should squeeze all the air from the mouth piece to the end of the bag. When they cannot squeeze no longer, read the volume of air from the outside of the bag. Record this volume in your observations.
6. EXPIRATORY RESERVE volume is the amount of air that you can push out after a normal breath out. Place the mouth piece in your mouth. When ready, breathe a normal breath out your nose and not into the volume bag. When done the normal breath, breathe as much air as you can into the volume bag. Repeat step 5.
7. INSPIRATORY RESERVE volume is the amount of air that you can breathe in after a normal breath in. Fill the volume bag completely with air and hold that air in the bag with your mouth. When you are ready, breathe in a normal amount of air from your nose. Then breathe in as much extra air from the volume bag. Repeat step 5.
8. Add the results from step 4, 6, and 7 together. This amount is called the VITAL CAPACITY. Record this in your observations.
9. All people have RESIDUAL AIR CAPACITY in their lungs after the expiratory reserve volume is used. This volume is used to keep the lungs inflated at all times. When babies are born, they are spanked on the bum to get their lungs to inflate for the first time. This volume averages at 1.5 L or 1500 cm cubed. Add this to the vital capacity to get the TOTAL LUNG CAPACITY yourself. Record this data in the observations.
OBSERVATIONS: Record the appropriate data mentioned in the method.
INTERPRETATIONS: 1. Name 10 factors that would alter the lung capacity from one person to another.
2. Why is exercising good for the lungs? Give 2 reasons.
3. Name 3 situations where the expiratory reserve volume would prevent death.
4. Name 3 situations where the residual air capacity would prevent death. Do not repeat any situations from step 3.
5. Name 3 situations where the inspiratory reserve volume is needed. Do not repeat any situations from above.
CONCLUSION: 1. What items add up to make the total air capacity?
I need more oxygen
- 1. Find pulse on wrist or under jaw bone.
- 2. Record your starting pulse: Count the number of beats in 15 seconds
(e.g. Starting pulse = 17 X 4 =68 beats per minute.)When the body needs more oxygen, this is what happens:
A.. We breathe deeper.
B.. We yawn.
C.. We breathe faster.
D.. The heart rate increases.
The brain part the measures the amount of CO2 (TOXIN) in the blood is called the MEDULLA OBLONGATA. It is in the brain stem – really old part of the brain.
When you have too much CO2 in the blood stream, the medulla oblongata stimulates nerves to move the muscles of the diaphragm and muscles attaching to the rib cage. This causes you to change your breathing until the CO2 levels get back to normal.
Lung Lab
PURPOSE: to ……
MATERIALS:
elastic band
plastic tube 1.5 inch long
clear plastic volume bag
METHOD:
1. Using a clock, count the number of breaths you make in one minute. Record this in your observations.
2. Obtain the materials from your teacher. To assemble the volume bag, put the plastic tube inside the end of the volume bag. Make sure the plastic tube still sticks out the end of the bag. This will be the mouth piece through which you will blow air into the bag. Using the elastic band, wrap the elastic around the bag so that the bag is firmly attached to the plastic tube.
3. To do the following volume measurements, make sure the following are done. The volume bag should be laid stretched out completely and flat. The volume bag should be empty of air before doing any measurement. To do this, take your hand and squeeze the bag flat from the end to the plastic mouth piece.
4. The TIDAL VOLUME is the amount of air that moves when you are at rest. This is the amount you breathe in and out normally. To measure tidal volume, make sure the volume bag is empty. Place your mouth around the end of the plastic mouth piece. When relaxed, breathe a normal breath into the volume bag.
5. When done breathing, cover the mouth piece with the end of your hand. While you hold the air in, the other person should squeeze all the air from the mouth piece to the end of the bag. When they cannot squeeze no longer, read the volume of air from the outside of the bag. Record this volume in your observations.
6. EXPIRATORY RESERVE volume is the amount of air that you can push out after a normal breath out. Place the mouth piece in your mouth. When ready, breathe a normal breath out your nose and not into the volume bag. When done the normal breath, breathe as much air as you can into the volume bag. Repeat step 5.
7. INSPIRATORY RESERVE volume is the amount of air that you can breathe in after a normal breath in. Fill the volume bag completely with air and hold that air in the bag with your mouth. When you are ready, breathe in a normal amount of air from your nose. Then breathe in as much extra air from the volume bag. Repeat step 5.
8. Add the results from step 4, 6, and 7 together. This amount is called the VITAL CAPACITY. Record this in your observations.
9. All people have RESIDUAL AIR CAPACITY in their lungs after the expiratory reserve volume is used. This volume is used to keep the lungs inflated at all times. When babies are born, they are spanked on the bum to get their lungs to inflate for the first time. This volume averages at 1.5 L or 1500 cm cubed. Add this to the vital capacity to get the TOTAL LUNG CAPACITY yourself. Record this data in the observations.
OBSERVATIONS:
Record the appropriate data mentioned in the method.
INTERPRETATIONS:
1. Name 10 factors that would alter the lung capacity from one person to another.
2. Why is exercising good for the lungs? Give 2 reasons.
3. Name 3 situations where the expiratory reserve volume would prevent death.
4. Name 3 situations where the residual air capacity would prevent death. Do not repeat any situations from step 3.
5. Name 3 situations where the inspiratory reserve volume is needed. Do not repeat any situations from above.
CONCLUSION:
1. What items add up to make the total air capacity?
2. What is your total air capacity?