Follow this number up to the heavy line, then move across to locate the corresponding volume. 2. 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). %PDF-1.5 Human lung capacity can be measure in several ways. 1. Record the measurements on the data table. <> Human lung size is determined by genetics, gender, and height. Blow up the balloon several times to stretch it thoroughly. 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>> CAPACITY. Use your three measurements to calculate an average vital capacity. 1.  What is the difference between tidal volume and vital capacity?     Suggest a way you could measure a person’s tidal volume. Now breathe out. Don't use plagiarized sources. Explain your reasoning. How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' They will learn about lung capacity and be able to measure their own lung capacity. Name: ____________________________________, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. e) Convert the balloon diameters into a measurement of lung capacity by using figure 2. 2) Exhale into the balloon. 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. Get Your Custom Essay on Lung Capacity Lab Just from $13,9/Page. 3) Pinch the end of the balloon. Inhale normally and then exhale normally into the balloon. Record in Table 3. Take a deep breath in. Pinch the end of the balloon and measure its diameter. 5) Record this measurement in your data table. exhale normally into the balloon. This activitiy will help students to gain a better understanding of their lungs and how they work. 2. 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. 3 0 obj Therefore, the volume of air in the balloon is a representative of the maximum amount of air your lungs can hold up. Lung capacity provides information about the general health of the lungs. endobj Metric ruler. The purpose of this activity is to measue the vital capacity and tidal volume of our own lungs using a balloon. In this activity, you will be measuring Get Essay Then I situated the bucket in the center of the tray. 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. Do not force your breathing. How do doctors measure your lung capacity? Do not force your breathing. At maximal capacity, an average lung can hold almost six liters of air, but lungs do not usually operate at maximal capacity. 2. Pinch the end of the balloon and measure its diameter in cm.  Record on data table. The amount of air taken in or expelled during normal breathing is about 500 cm 3. Students will then create a hypothesis about lung capactiy and height. SOURCES: Mayo Clinic: “Spirometry,” “Peak flow meter.” Cleveland Clinic: “Peak flow meter.” American Lung Association: “Measuring your peak flow rate.” MATERIALS AND METHODS: Vital capacity is measured in liters (l), milliliters (mL) and cubic centimeters (cm3). Blow up the balloon several times to stretch it before beginning to take measurements. 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 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. Circumference #1 (cm) Circumference #2 (cm) Circumference #3 (cm) AVERAGE Do not force your breathing. Repeat this so that you have 3 measurements. When you take a deep breath, blow into the balloon and hold you transfer all the air in stored your lungs into the balloon. In this lab, you will measure three indices of lung capacity using a balloon. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. <> Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. Balloons, metric ruler, meter stick, bathroom scale (optional) 1. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. INTRODUCTION: A spirometer is the instrument used in the health profession to accurately measure lung capacity.  Convert the diameter to volume using the graph and record this on your table. 2. MATERIALS: One circular balloon per student String Ruler PROCEDURE: 1) Take 1 BIG breath. 3. 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. Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. Measuring Tidal Volume -- Stretch a round balloon several times to stretch it out. lung capacity. . then exhale normally into the balloon. Make sure to only exhale once into the balloon. 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. Measuring Vital Capacity - Repeat the procedure, only this time inhale as much air as you can and exhale forcefully. Go to this site: http://biol.co/vitcap1   and input information on test subjects.  It will calculate the vital capacity. Several different lung volume measurements can be made. stream 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 %���� 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 much air can you hold in your lungs? What about your grandmother versus a child? 2 0 obj Your answer will be in cubic centimeters … Exercise 4: Measuring Lung Volumes and Capacities. Explain that they will be measuring their lung capacity (amount something can hold) using balloons. To show the size of one person's lung capacity in comparison with another's you will be measuring how big around the balloon … .this is the circumference (use cm). This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. endobj 1 0 obj They will measure the circumference … Repeat the trials 2 - 3 more times and record. 4. Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. This is basically how much air your lungs can push out in one breath. Estimated Vital Capacity                              Â. USING A BALLOON TO MEASURE VITAL CAPACITY PURPOSE: To measure your vital capacity using a balloon. 2. Measuring Tidal Volume. 5. One way is by using a piece of laboratory equipment called a respirometer or spirometer. Pinch the end of the balloon and measure its diameter. Procedure: 1. However, lung capacity can also be measured by using a balloon. One mL = one cm3. Materials: Make a list of the materials we will use today. Stretch your balloon. 4 0 obj Shape the balloon into a sphere shape while holding the air in. 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. 4) Have your partner measure the circumference of the balloon (in cm) using the method your teacher showed you. 8. After that they will begin the balloon experiment to measure their own lung capacity. 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. VITAL CAPACITY. Introduction: Spirometer is an instrument used to measure the lung capacity. The amount of air that you move in and out of your lungs while breathing normally is called TIDAL VOLUME. 4. Procedure A: VITAL CAPACITY 1. Do not force your breathing. To convert from balloon diameter to volume, locate the balloon diameter on the horizontal axis of the graph on the next page. 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. Repeat this so that you have 3 total measurements and can take the average and record in the data table. measure the distance around the balloon . How might an athlete's vital capacity compare to a non-athlete? Measuring Lung Capacity Lab. Background. 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. Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. endobj Inhale normally and then exhale normally into the balloon. This amount of air provides enough oxygen for a person who is resting. (If they are having trouble, hold up a balloon and let them make the connection.) Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. 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… Measuring lung capacity might be … Measuring Lung Capacity With A Balloon. For example, if your balloon diameter is 14.5 cm, then the corresponding lung volume is 1500 cm3. Can you think of other ways to measure your lung capacity? In general, the following procedure will get you started. Materials  -- Balloons, metric ruler, meter stick (or rulers or tape measures), Prediction:   Which factor(s) have the most affect a person’s vital capacity? Pinch the end of the balloon and measure its diameter. Then, ask your partner to measure the diameter of the balloon using a cm ruler. 1. MEASURING LUNG CAPACITY. The air in the lungs is measured in terms of volumes and capacities. Be careful with the measurements to be sure you do not flatten the 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. Place the balloon in your mouth, inhale normally and then exhale normally into the balloon. Deflate the balloon and repeat steps 1 and 2 two more times. Tidal Volume- The amount of air that you move in and out of your lungs while breathing normally (at rest) Vital Capacity- It is possible to inhale and exhale more forcefully - the maximum amount of air moved in and out of the lungs. How to Measure Tidal Volume with a balloon: First, stretch a party sized round balloon several times to stretch it out. 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. Do you think an athlete could hold more or less? 3. How to Measure 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. Pinch the end of the balloon and measure its diameter. The formula is: V= 4/3 π r 3. <>>> Use Figure 2 to convert the balloon diameters in Data Table 1 into lung volumes. Do you think the person with the greatest vital capacity can hold their breath longer than those with a lower vital capacity? Take a deep breath and blow all … What 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 Take a deep breath and then exhale into the balloon. One way is by using a complex piece of laboratory equipment called a spirometer. Stretch your balloon. 2. Stretch a round balloon several times to stretch it out. 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 measured and calculated number can after be compared with a number derived from an equation that measures your personal vital capacity. Materials: Balloons. (Solve the formula for r.) radius = _______________ *Calculate the VOLUME of the balloon (a sphere). 2. Record this measurement in Data Table t. 4. 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