The sheep heart is an excellent specimen to use for comparative human anatomy in both size. Use this sheep heart dissection guide in a lab for high school students. Prevents backflow of blood into left atrium when left ventricle pumps blood to body 3. Performing a heart dissection sept 2016 science assist. This muscular wall is the septum, and separates the right and left ventricles. Internal view aorta right atrium pulmonary atrium ventricle right. Sheep heart dissection mbusd internet usage disclaimer. A sheep s heart has four chambers like most mammals including humans. The heart is a muscular organ that pumps oxygenated blood and nutrients throughout the body. Sheep have a fourchambered heart, just like humans.
Review the outer part of the heart and make sure you know where these structures are. The human brain has a larger frontal lobe than the sheeps brain. Aorta pulmonary art superior view superior vena cava pulmonary veins. Lab guide outlining the procedure for dissecting the sheeps heart. Sheep heart dissection lab report biology junction.
Procedure day 1 you will not cut the heart open today. Anterior view aorta pu monary artery base pulmonary veins. It includes photos to diagram where major vessels are and where incisions should be made. The incision should follow the line of the right side of the heart so that you can open just the right side and see the right atrium, the right ventricle, and the tricuspid valve between them. The procedure must be completed according to the safety elements of the lab manual. In this investigation, the external and internal heart structure valves of a sheep s heart organ were examined and identified by dissection. The human brain and sheep brain have the major difference that humans can think, write, invent or create with their brains, whereas sheep cannot. The human brain is rounded, whereas the sheeps brain is elongated in shape. By studying the sheep s anatomy, you can learn how your own heart pumps blood through your body, thereby keeping you alive. Dissection of the sheep heart offers students an excellent opportunity to learn about the anatomy of a mammalian heart. Use a scalpel to make an incision in the heart at the superior vena cava.
A little down and to the left of the superior vena cava there is. We dissected a heart in order to visually understand the parts of the heart, what its made of, how it works, and what it looks like in real life. Sheep heart dissection lab for high school science hst. Nau bio 202 lab 3 sheep heart dissection this is a guide to help students at northern arizona university to dissect a sheep heart and know basic anatomy and physiology. Show this to your teacher before you make the incision. Left atrioventricular valve, left av valve, bicuspid valve or mitral valve 2.
Heart dissections are conducted to explore the function of a heart by examining. Posterior view superior vena cava interventricular septum. By examining a heart we can learn many different things like for. Order sheep or lamb hearts from a biological supply company such as blades biologicals. Access free sheep heart dissection answers sheep heart dissection answers sheep heart structures external and internal sheep heart anatomy. Alternatively, the whole procedure can be carried out in a double lesson. Sheep heart identification checklist doc or pdf for.
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