1 General Biology II Lab Lab #10: Circulatory & Respiratory Systems

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Figure 8. Comparison of respiratory and circulatory systems of vertebrates------------------------------------------------------------------------------------------------------------NOTES:• You will examine the same organisms for Tasks 2 and 3. Many of theseorganisms you have observed previously to understand the digestive andnervous systems.• Pay special attention to the dogfish shark, fetal pig, frog and pigeon. Theseorganisms are double injected with red and blue dyes marking the arteriesand veins, respectively.------------------------------------------------------------------------------------------------------------<strong>General</strong> Procedures:1. Examine the positions of the organs listed in Tables 6 and 7 within the animal. Makesure that you understand how these organs connect to the rest of the body.2. Once you feel comfortable, carefully cut out the hearts, gills, lungs and a piece ofleopard frog skin.a. Examine all of these structures under a dissecting microscope.b. Examine the external morphology of each organ paying attention to thestructures noted in Tables 6 and 7.Cut open the heart and lungs to identify the structures noted in the Tables.------------------------------------------------------------------------------------------------------------Task 2: <strong>Respiratory</strong> systemsIn this task, you will examine the different respiratory structures (Table 6) in organismsbelonging to various animal phyla. Sketch your observations in the space provided. Referto the figures indicated below each organism in your Dissection Atlas.12
Table 6:Organism Main respiratory organ DrawingPerchFig. 17.19, 17.21GillsLocate the operculum, gillarches and gill rakersShark (by TA)Fig. 17.5, 17.12GillsLocate the gill arches andgill rakersLeopard frogSkin and lungsPig (by TA)Fig. 17.59, 17.61LungsRatFig. 17.45, 17.44LungsCut a piece of the lung andobserve it under adissecting microscope.PigeonFig. 17.42Lungs, Air sacksand Trachea13
Page 1 and 2: General Biology II LabLab #10: Circ
Page 3 and 4: Figure 3. Respiratory structures of
Page 5 and 6: Figure 5. Human lungsIn this task y
Page 9 and 10: 2. Inhale and exhale three times th
Page 14 and 15: Questions:1. Examine the lungs of t
Page 16 and 17: A) INTERNAL EXTERNALB) INTERNAL EXT
Page 18 and 19: Questions:1. Consider the size of t

1 General Biology II Lab Lab #10: Circulatory & Respiratory Systems

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