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. Sheep heart dissection procedure day 2 you will be cutting the heart open today. A sheep s heart has four chambers like most mammals including humans. Use this sheep heart dissection guide in a lab for high school students. By examining a heart we can learn many different things like for. 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. Use a scalpel to make an incision in the heart at the superior vena cava. Aorta pulmonary art superior view superior vena cava pulmonary veins. The human brain is rounded, whereas the sheeps brain is elongated in shape. Lab guide outlining the procedure for dissecting the sheeps heart. The heart is a muscular organ that pumps oxygenated blood and nutrients throughout the body. Alternatively, the whole procedure can be carried out in a double lesson. Access free sheep heart dissection answers sheep heart dissection answers sheep heart structures external and internal sheep heart anatomy. Sheep have a fourchambered heart, just like humans.
By studying the sheep s anatomy, you can learn how your own heart pumps blood through your body, thereby keeping you alive. Heart dissections are conducted to explore the function of a heart by examining. The human brain and sheep brain have the major difference that humans can think, write, invent or create with their brains, whereas sheep cannot. Left atrioventricular valve, left av valve, bicuspid valve or mitral valve 2. It includes photos to diagram where major vessels are and where incisions should be made. The sheep heart is an excellent specimen to use for comparative human anatomy in both size. The procedure must be completed according to the safety elements of the lab manual. Prevents backflow of blood into left atrium when left ventricle pumps blood to body 3. Posterior view superior vena cava interventricular septum. Performing a heart dissection sept 2016 science assist. Order sheep or lamb hearts from a biological supply company such as blades biologicals. 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 report biology junction. Internal view aorta right atrium pulmonary atrium ventricle right.
You are using brand new scalpels in this lab so please be extra cautious and as a. A little down and to the left of the superior vena cava there is. Dissection of the sheep heart offers students an excellent opportunity to learn about the anatomy of a mammalian heart. Anterior view aorta pu monary artery base pulmonary veins. Sheep heart dissection lab for high school science hst. Review the outer part of the heart and make sure you know where these structures are.
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