Similarities Between Sheep Heart And Pig Heart

The left side of the heart was bigger than the right side. This is because the left side of the heart, has the job of pumping the blood to all the body. The right side of the heart is smaller as it has only one job, which is to pump blood to the lungs. The atrium are very flimsy in comparison to the ventricles. The atria are small and flap like because it collects blood, whereas the ventricles actually pump the blood, so they are stronger muscles. This was why they were large and took up most of the room in the heart. There were two arteries coming out the top of the heart. These are the aorta and the pulmonary artery. Their elastic walls are very thick so that they can withstand high levels of blood pressure.

Heart valves ensure one way blood flow through heart. The atrioventricular (AV) valves lie between the atria and the ventricles prevents the back flow of blood in to the atria while the ventricles contract. Chordae tendinae anchor AV values to papillary muscles. The left AV valve, the mitral or bicuspid valve consists of two cusps of endocardium. The right atrioventricular valve, the tricuspid valve, has three cusps. The second sets of valve are the semilunar valves. The pulmonary semilunar valves lie between the right ventricle and pulmonary trunk. Aortic semilunar valves lie between ventricle and the aorta. Semilunar valves prevent the backflow of blood into the ventricle.

My hypothesis was correct in addressing how similar the fetal pig and human anatomy are, and how it helps to learn more about a human. One way in which the fetal pig is particularly similar to a human is its lungs. The fetal pig’s lungs are almost identical to that of a human. They exchange oxygen for CO2, are located in the same place, and are also multi-lobed. Another similarity is the pig’s pericardium. The pericardium is a clear membrane that surrounds the heart, it is composed of an outer fibrous layer and an inner double layer of serous membrane. Its main purpose is the give the heart protection against infection and bacteria, and it provides lubrication as well. Every human has their heart surrounded by this, and so does a fetal pig. When dissecting, the dissector must make a light incision and remove the pericardium so the heart can be accessed. Although there are many similarities between the fetal pig and a human, there are also differences. The first difference resides in the liver. A normal human liver has four lobes: right, left, caudate, and quadrate. While a normal pig liver has five lobes: right lateral, right central, left central, left lateral, and caudate. Another main difference is that a fetal pig’s colon is a spiral shape. A human’s colon is shaped in a sigmoidal pattern instead (“Human/Pig Comparisons”, 2004, September, goshen.edu).

In a normal human being the heart correctly functions by the blood first entering through the right atrium from the superior and inferior vena cava. This blood flow continues through the right atrioventricular valve into the right ventricle. The right ventricle contracts forcing the pulmonary valve to open leading blood flow through the pulmonary valve and into the pulmonary trunk. Blood is then distributed from the right and left pulmonary arteries to the lungs, where carbon dioxide is unloaded and oxygen is loaded into the blood. The blood is returned from the lungs to the left

The heart is basically a pump that has to circulate the blood around the body delivering oxygenated blood to our organs and then returning deoxygenated blood to our lungs. There are four chambers in the heart, two atria and two ventricles. There are four main valves, mitral, aortic, tricuspid and pulmonary7b.

Knowing that structure and function are related, how would you say this structural difference reflects the relative functions of these two heart chambers? the left ventricle is responsible for systemic circulation, it is larger because it needs to

ANSWER: The structures between the two are similar in a way that they look like a web or roots, and they both function to collect and return blood to the heart from the blood cycle (1 p. 399).

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The mitral valve is located on the left side of the heart between the left atrium and left ventricle. The purpose of the mitral valve is to form a seal between these two chambers of the heart to prevent the back flow of blood. When blood enters the left side of the heart, it is oxygenated and enters through the pulmonary veins. The blood then travels through the left atrium; the bicuspid (mitral) valve then opens to let the blood flow down to the left ventricle. The left ventricle contracts, causing the mitral valve to close (preventing the backflow of blood).When the left ventricle contracts it is pumping the blood out to the remainder of the body. (Jenkins, 2007)

The heart is a very strong muscle that has one major job. The heart’s job is to pump blood throughout the entire body. The heart is made up of 4 chambers, and 4 valves. There is the right and left atrium, and a right and left ventricle. The atriums are the superior chambers, and the ventricles are inferior chambers. The left ventricle is the most important, because that is where the blood travels through to go to the aorta, and eventually the rest of the body (Taylor 2015).

Locate the mitral valve (or bicuspid valve) between the left atrium and ventricle. This will have two flaps of membrane connected to papillary muscles by tendons.

The heart has four valves which each play an important role in healthy circulation. The four valves in order of circulation are tricuspid valve, pulmonary valve, mitral valve, and aortic valve. Each chamber of the heart has a valve that must fully open to allow blood to pass through to its next destination and close tightly when the blood is done passing, to prevent backflow.

The cardiovascular system for both the sheep and the pig has common similarities. The hearts of the sheep and the pig has four chambers divided into the left atria, left ventricle, right ventricle and the right atria. Their hearts have almost the same muscular muscles in the right and left ventricles though they do not have a thick layer of fat like the other mammals. However their hearts have both the pulmonary and aorta trunk. Apart from the similarities mentioned above there are minor differences between the sheep and the pig’s heart. The pig has a bigger heart than the sheep in terms of the sizes, the ventricles, and the diameter of the atria, aorta, ventricles and the heart’s wall. However the pulmonary trunk of

Another difference is the fact they have different lengths, the skeletal muscle is much longer than the cardiac muscle. This is because when cell

The heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist, and its weight is about 250-300 g. Its center is located about 1.5 cm to the left of the midsagittal plane. Located above the heart are the great vessels: the superior and inferior vena cava, the pulmonary artery and vein, as well as the aorta. The aortic arch lies behind the heart. The esophagus and the spine lie further behind the heart.