measuring lung capacity with a balloon

%���� What Circumference #1 (cm) Circumference #2 (cm) Circumference #3 (cm) AVERAGE Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. Measuring Vital Capacity - Repeat the procedure, only this time inhale as much air as you can and exhale forcefully. Be careful with the measurements to be sure you do not flatten the balloon. Procedure A: VITAL CAPACITY 1. 1. Use Figure 2 to convert the balloon diameters in Data Table 1 into lung volumes. Rank in order from MOST effect (1)  to least effect (5), The weight of the person The height of the person, The sex of the person The age of the person Activity level. Take a deep breath and blow all … Follow this number up to the heavy line, then move across to locate the corresponding volume. e) Convert the balloon diameters into a measurement of lung capacity by using figure 2. Blow up the balloon several times to stretch it before beginning to take measurements. Then, ask your partner to measure the diameter of the balloon using a cm ruler. For example, if your balloon diameter is 14.5 cm, then the corresponding lung volume is 1500 cm3. 4. <> 1.  What is the difference between tidal volume and vital capacity?     Suggest a way you could measure a person’s tidal volume. 1 0 obj .this is the circumference (use cm). Inhale normally and then exhale normally into the balloon. Pinch the end of the balloon and measure its diameter. The amount of air taken in or expelled during normal breathing is about 500 cm 3. (Solve the formula for r.) radius = _______________ *Calculate the VOLUME of the balloon (a sphere). %PDF-1.5 Compare your subjects’ vital capacity and variables listed (height, weight, sex..etc).   Based on your limited data, which factors had the GREATEST impact on tidal volume. measure the distance around the balloon . One way is by using a piece of laboratory equipment called a respirometer or spirometer. 2 0 obj Repeat the trials 2 - 3 more times and record. 2. 4. The purpose of this activity is to measue the vital capacity and tidal volume of our own lungs using a balloon. Measuring Tidal Volume. 2. MATERIALS: One circular balloon per student String Ruler PROCEDURE: 1) Take 1 BIG breath. The amount of air that you move in and out of your lungs while breathing normally is called TIDAL VOLUME. Choose 3 subjects from your group and record data on their height, age, sex, and activity level. Â. You will need a balloon (the kind that blows up into a regular balloon shape, not the oblong sort), a measuring tape or ruler, and something to record data with and on. Stretch a round balloon several times to stretch it out. Stretch your balloon. Materials: Make a list of the materials we will use today. Don't use plagiarized sources. exhale normally into the balloon. They will learn about lung capacity and be able to measure their own lung capacity. 2. In general, the following procedure will get you started. Procedure: 1. The purpose of the investigation is to determine our own lung capacity and then depending on your student’s hypothesis do some additional testing and measure lung capacity again. Human lung capacity can be measure in several ways. Explain your reasoning. Use a 5 litre bottle snugly fitted with a cap through which two pipes are inserted, (one inlet - to blow air into the container; and one outlet - to collect the water drawn out from the bottle). How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' Do not force your breathing. Shape the balloon into a sphere shape while holding the air in. Use your three measurements to calculate an average vital capacity. Inhale normally and then exhale normally into the balloon. <> One mL = one cm3. Take a deep breath and blow all at once into the balloon and close it off. Introduction: Spirometer is an instrument used to measure the lung capacity. To convert from balloon diameter to volume, locate the balloon diameter on the horizontal axis of the graph on the next page. 5) Repeat this 2 more times so you can find your average lung capacity. �H ��̉���a.g����=�I �v���,��*m���ϳW�|��L(b��1�ĝuof�*MX'�e �1�rg� Qm��7�b"s�9'ܤ����9��CO�{5D��>������sFg;@�8u� ��z���d[�s5�UO&�d� ���Wr��#�V,����x�;M1�����jT&���0$%ZwÕ6���6������U;�Qwx��7VO��!,��k��GkW*9�r(��1w^���t��pG9�z��6gr����D��*_ÿCQ�X�r�� ��́�myy���l�G�(�)� zU�:�O���∻���b�@�q��Ь����a������&Y"���,ʤ!�����9��d�>��Ë㷁HQ��.��@PEt �[�މy�!yj!5#*ɍ)�m�R���;-�Q�����x7��u����6}�II"�1uL�Zelkv\��q�N���2����H�>�9H�c}�w�-(�����J�X�4��ZwT�MZU�6�Z. Do not force your breathing. After that they will begin the balloon experiment to measure their own lung capacity. Do you think an athlete could hold more or less? Place the balloon in your mouth, inhale normally and then exhale normally into the balloon. <>>> If you don't actually have someone of the right age to do the experiment with, you can /estimate/ their vital lung capacity with this equation: V = 0.041*h - 0.018*a - 2.69 Pinch the end of the balloon and measure its diameter. Measuring Tidal Volume -- Stretch a round balloon several times to stretch it out. 2. Or maybe just the exercise of blowing into the balloon would be good breathing therapy (that is, measuring is not really necessary). MEASURING LUNG CAPACITY. How might an athlete's vital capacity compare to a non-athlete? This is basically how much air your lungs can push out in one breath. 3) Pinch the end of the balloon. Pinch the end of the balloon and measure its diameter. Lung capacity provides information about the general health of the lungs. Record this measurement in Data Table t. 4. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. Record in Table 3. 3. 2. Measuring Lung Capacity With A Balloon. 3 0 obj 4. Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. 5) Record this measurement in your data table. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Background. Repeat this so that you have 3 measurements. Materials: Balloons. Get Your Custom Essay on Lung Capacity Lab Just from $13,9/Page. 8. Estimated Vital Capacity                              Â. Pinch the end of the balloon and measure its diameter in cm.  Record on data table. Metric ruler. In the other lab, measuring lung capacity, to measure one’s tidal volume, a person is to stretch a round balloon and then inhale and exhale normally into the balloon. Balloons, metric ruler, meter stick, bathroom scale (optional) 1. Take a deep breath and then exhale into the balloon. Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. How to Measure Lung Capacity. Pinch the end of the balloon and measure its diameter. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Go to this site: http://biol.co/vitcap1   and input information on test subjects.  It will calculate the vital capacity. Human lung size is determined by genetics, gender, and height. USING A BALLOON TO MEASURE VITAL CAPACITY PURPOSE: To measure your vital capacity using a balloon. 4 0 obj Measuring lung capacity might be … endobj Materials  -- Balloons, metric ruler, meter stick (or rulers or tape measures), Prediction:   Which factor(s) have the most affect a person’s vital capacity? Take a deep breath in. Do you think the person with the greatest vital capacity can hold their breath longer than those with a lower vital capacity? When you inhale and exhale more forcefully that is the maximum amount of air that you can move in and out of the lungs, which is called Vital Capacity. Your answer will be in cubic centimeters … 4) Have your partner measure the circumference of the balloon (in cm) using the method your teacher showed you. Before beginning the experiment, the students will see how the lung works by using a soda bottle as well as a demonstration of the diaphragm. 2. How do doctors measure your lung capacity? Students will then create a hypothesis about lung capactiy and height. 3.  What variables of your test subjects were necessary to input into the calculator?    Which variables seem to have the LEAST effect on a person’s vital capacity? 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