Heart Dissection
Joselyn Bodnar
Heart lab dissection
3/2/15
The Human heart has many complicated processes. Dissecting a sheep’s heart can help to provide an active, firsthand learning experience that allows to illustrate what has been previously heard and read. The sheep heart and a human heart share the same function and purpose, which is to keep the body alive by continually circulating blood around the body. Like a human heart, a sheep’s heart contains two atria and two ventricles. These four chambers work together to pump deoxygenated blood to the lungs and oxygenated blood to the rest of the body. The important reason for carrying out this experiment is to examine and understand the structural features of the heart which will help us to understand and to appreciate how the heart operates. The main purpose behind dissecting a lamb's heart was to understand the different functions that each part of the heart performs from the atria at the top of the heart to the ventricles at the bottom, as well as why each section is so important to a heart functioning properly and correctly.
To begin this experiment we had to identify the external parts of the heart. Starting with the right and left side of the heart. This was done by looking for blood vessels that divided the heart in half. After observing each side it was easy to determine the left side was stronger. The reason is because it has the important job of regulating blood flow around the majority of the body. The next task required the groups to examine the darker tissue, also known as the auricles. This then allowed us to identify the superior vena cava that directs blood to the right atrium at the top half of the heart. A probe was then used to locate the inferior vena cava that brings blood to the right atrium from the lower tissues. After finding the left auricle, it was possible to see the pulmonary vein, which brings blood from the lungs to the left atrium. The final part of the external anatomy observation was to
Heart lab dissection
3/2/15
The Human heart has many complicated processes. Dissecting a sheep’s heart can help to provide an active, firsthand learning experience that allows to illustrate what has been previously heard and read. The sheep heart and a human heart share the same function and purpose, which is to keep the body alive by continually circulating blood around the body. Like a human heart, a sheep’s heart contains two atria and two ventricles. These four chambers work together to pump deoxygenated blood to the lungs and oxygenated blood to the rest of the body. The important reason for carrying out this experiment is to examine and understand the structural features of the heart which will help us to understand and to appreciate how the heart operates. The main purpose behind dissecting a lamb's heart was to understand the different functions that each part of the heart performs from the atria at the top of the heart to the ventricles at the bottom, as well as why each section is so important to a heart functioning properly and correctly.
To begin this experiment we had to identify the external parts of the heart. Starting with the right and left side of the heart. This was done by looking for blood vessels that divided the heart in half. After observing each side it was easy to determine the left side was stronger. The reason is because it has the important job of regulating blood flow around the majority of the body. The next task required the groups to examine the darker tissue, also known as the auricles. This then allowed us to identify the superior vena cava that directs blood to the right atrium at the top half of the heart. A probe was then used to locate the inferior vena cava that brings blood to the right atrium from the lower tissues. After finding the left auricle, it was possible to see the pulmonary vein, which brings blood from the lungs to the left atrium. The final part of the external anatomy observation was to