%PDF-1.5 Consider the difference between internal respiration and external respiration and explain why lung capacity may not have a great effect on length of time you can hold your breath. Measuring Lung Capacity Annotation: This lesson will provide students with a concrete way to determine their individual lung capacity using both a measured balloon activity as well as a formula that relates body surface area to How much air can you hold in your lungs? At maximal capacity, an average lung can hold almost six liters of air, but lungs do not usually operate at maximal capacity. However, lung capacity can also be measured by using a balloon. 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. 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. This information will be recorded under the "Vital Capacity diameter" column. Your answer will be in cubic centimeters … Use your three measurements to calculate an average vital capacity. Procedure: 1. 1. <> x��Z�n�F}7��ԛ��'mS @��CP�EGDe��m��3{!wy�5ADR��9s���J��cv}���������޼����]^���e�,��e,�$/2m�p��~��h�uwy���˟./>_S*� ˯)c�nXG�o�������r����8���k���7dw�\^���0�/��8tGŘ�a�❋&Dy�#��}�|�!��4�p��Q�e�޼vv�yN���m�E���q>����0�D=������2�r�i8y For example, if your balloon diameter is 14.5 cm, then the corresponding lung volume is 1500 cm3. Measuring Lung Capacity With A Balloon. What Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. 4. 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. MATERIALS: One circular balloon per student String Ruler PROCEDURE: 1) Take 1 BIG breath. The formula is: V= 4/3 π r 3. Or maybe just the exercise of blowing into the balloon would be good breathing therapy (that is, measuring is not really necessary). Follow this number up to the heavy line, then move across to locate the corresponding volume. They will learn about lung capacity and be able to measure their own lung capacity. Several different lung volume measurements can be made. Materials: Balloons. 2. Research has shown that the capacity of a person's lungs is proportional to the surface area of his body and his height.   This online calculator will use your height and age to estimate your vital capacity.  Have each of your subjects record their data. 3 0 obj 3) Pinch the end of the balloon. One way is by using a piece of laboratory equipment called a respirometer or spirometer. Go to this site: http://biol.co/vitcap1   and input information on test subjects.  It will calculate the vital capacity. Repeat this so that you have 3 total measurements and can take the average and record in the data table. Human lung capacity can be measure in several ways. Repeat this so that you have 3 measurements. Make sure to only exhale once into the balloon. MEASURING LUNG CAPACITY. lung capacity. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. 2. exhale normally into the balloon. The air in the lungs is measured in terms of volumes and capacities. How do doctors measure your lung capacity? Explain your reasoning. Human lung size is determined by genetics, gender, and height. This activitiy will help students to gain a better understanding of their lungs and how they work. How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' MATERIALS AND METHODS: Vital capacity is measured in liters (l), milliliters (mL) and cubic centimeters (cm3). (Solve the formula for r.) radius = _______________ *Calculate the VOLUME of the balloon (a sphere). After that they will begin the balloon experiment to measure their own lung capacity. Measuring Vital Capacity - Repeat the procedure, only this time inhale as much air as you can and exhale forcefully. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. (If they are having trouble, hold up a balloon and let them make the connection.) Stretch a round balloon several times to stretch it out. In this lab, you will measure three indices of lung capacity using a balloon. 8. Don't use plagiarized sources. endobj 2. Measuring Tidal Volume -- Stretch a round balloon several times to stretch it out. 2. �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. 4 0 obj Inhale normally and then exhale normally into the balloon. stream Measuring lung capacity might be … They will measure the circumference … Do you think the person with the greatest vital capacity can hold their breath longer than those with a lower vital capacity? Students will then create a hypothesis about lung capactiy and height. Deflate the balloon and repeat steps 1 and 2 two more times. 3. Stretch your balloon. 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? <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 2 0 obj Take a deep breath in. Measuring Tidal Volume. How to Measure Tidal Volume with a balloon: First, stretch a party sized round balloon several times to stretch it out. Exercise 4: Measuring Lung Volumes and Capacities. Lung capacity provides information about the general health of the lungs. Balloons, metric ruler, meter stick, bathroom scale (optional) 1. Record in Table 3. 5. When you take a deep breath, blow into the balloon and hold you transfer all the air in stored your lungs into the balloon. 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. This amount of air provides enough oxygen for a person who is resting. INTRODUCTION: A spirometer is the instrument used in the health profession to accurately measure lung capacity. Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. measure the distance around the balloon . Take a deep breath and blow all … Pinch the end of the balloon and measure its diameter. 2. In this activity, you will be measuring the vital capacity of members of the class.   If you have any breathing difficulties (asthma or other condition), you should not participate.  You will be using the diameter of a balloon and the graph shown to estimate your capacities. Do not force your breathing.  Convert the diameter to volume using the graph and record this on your table. Introduction: Spirometer is an instrument used to measure the lung capacity. In our experiment, however, we'll be using two methods of measuring lung capacity that we can make at home: the balloon method and the water d… 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. 3. In this activity, you will be measuring Procedure A: VITAL CAPACITY 1. Circumference #1 (cm) Circumference #2 (cm) Circumference #3 (cm) AVERAGE %���� Shape the balloon into a sphere shape while holding the air in. 4. One mL = one cm3. To show the size of one person's lung capacity in comparison with another's you will be measuring how big around the balloon … Do not force your breathing. Repeat the trials 2 - 3 more times and record. Pinch the end of the balloon and measure its diameter in cm.  Record on data table. Inhale normally and then exhale normally into the balloon. The amount of air that you move in and out of your lungs while breathing normally is called TIDAL VOLUME. Materials: Make a list of the materials we will use today. The purpose of this activity is to measue the vital capacity and tidal volume of our own lungs using a balloon. e) Convert the balloon diameters into a measurement of lung capacity by using figure 2. In general, the following procedure will get you started. This is basically how much air your lungs can push out in one breath. Get Essay Then I situated the bucket in the center of the tray. Use Figure 2 to convert the balloon diameters in Data Table 1 into lung volumes. USING A BALLOON TO MEASURE VITAL CAPACITY PURPOSE: To measure your vital capacity using a balloon. The amount of air taken in or expelled during normal breathing is about 500 cm 3. In this activity, you will be measuring the vital capacity and the tidal volume of your own lungs using a balloon (not exactly the most accurate measure, but close enough for our needs). Do you think an athlete could hold more or less? Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. then exhale normally into the balloon. 2) Exhale into the balloon. 4. This measured and calculated number can after be compared with a number derived from an equation that measures your personal vital capacity. 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). Pinch the end of the balloon and measure its diameter. 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. 5) Repeat this 2 more times so you can find your average lung capacity. What about your grandmother versus a child? 1. It is possible to inhale and exhale more forcefully - the maximum amount of air moved in and out of the lungs is called the VITAL CAPACITY, which is the amount of air a person can expel from the lungs at maximum inhalation. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Do not force your breathing. VITAL CAPACITY. <>>> Pinch the end of the balloon and measure its diameter. . endobj Now breathe out. CAPACITY. Place the balloon in your mouth, inhale normally and then exhale normally into the balloon. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Be careful with the measurements to be sure you do not flatten the balloon. Stretch your balloon. Then, ask your partner to measure the diameter of the balloon using a cm ruler. Therefore, the volume of air in the balloon is a representative of the maximum amount of air your lungs can hold up. Whether you have an existing respiratory condition, or have noticed difficulty or changes in your breathing, it is a good idea to take some tests to measure your lung capacity. 4) Have your partner measure the circumference of the balloon (in cm) using the method your teacher showed you. To convert from balloon diameter to volume, locate the balloon diameter on the horizontal axis of the graph on the next page. Repeat this so that you have 3 total measurements and can take the average and record in the data table. How might an athlete's vital capacity compare to a non-athlete? Pinch the end of the balloon and measure its diameter. Measuring Lung Capacity Lab. Name: ____________________________________, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. SOURCES: Mayo Clinic: “Spirometry,” “Peak flow meter.” Cleveland Clinic: “Peak flow meter.” American Lung Association: “Measuring your peak flow rate.” Choose 3 subjects from your group and record data on their height, age, sex, and activity level. Â. Take a deep breath and blow all at once into the balloon and close it off. .this is the circumference (use cm). endobj 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. 5) Record this measurement in your data table. Take a deep breath and then exhale into the balloon. Metric ruler. 1 0 obj Materials  -- Balloons, metric ruler, meter stick (or rulers or tape measures), Prediction:   Which factor(s) have the most affect a person’s vital capacity? Background. Record the measurements on the data table. Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. 1.  What is the difference between tidal volume and vital capacity?     Suggest a way you could measure a person’s tidal volume. Do not force your breathing. Explain that they will be measuring their lung capacity (amount something can hold) using balloons. 2. Record this measurement in Data Table t. 4. Get Your Custom Essay on Lung Capacity Lab Just from $13,9/Page. Blow up the balloon several times to stretch it thoroughly. One way is by using a complex piece of laboratory equipment called a spirometer. Can you think of other ways to measure your lung capacity? 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 Blow up the balloon several times to stretch it before beginning to take measurements. How to Measure Lung Capacity. 2. 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