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Frog heart model (dorsal view); Biology
Topic Started: May 23 2008, 06:39 PM (24 Views)
jamali May 23 2008, 06:39 PM Post #1
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[size=5]1. Ventricle



2. Right atrium



3. Left atrium



4. Sinus venosus


5. Pulmonary veins



6. Pulmocutaneous arches


7. Systemic arches



8. Carotid arches



FredsButton

FredsLine



On the dorsal side of the heart observe the thin walled sinus venosus which is formed by the convergence of the anterior vena cavae and posterior vena cava. Pulmonary veins bringing oxygenated blood from the lungs join to enter the left atrium.
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jamali May 23 2008, 06:42 PM Post #2
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jamali May 23 2008, 06:46 PM Post #3
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The Frog's heart is similar in structure and function to our own just not as large. It pumps the blood first to the lungs and then throughout the frog's body. One major difference is the frog's heart has only three chambers unlike human hearts which have four.
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