Discussion:
1. Compare the ratio of the lengths of the intestine in earthworms, frogs, pigs, and humans. What significance do the lengths have with respect to the organism?
Based on dissection, it was noted that the length of the intestine in earthworms, frogs, and humans all vary in sizes. The intestine of the earthworm is about two-thirds of the worm 's body length. The length of the small intestine of the frog is 3 feet while its large intestine is about 1 feet. A pig 's small intestine measures 6 feet while its large intestine measures about 2 feet. The length of a human 's small intestine is about 7 metres long and its large intestine is about 1.5 metres long. The small intestine is generally longer than the large intestine. The length …show more content…
All these organisms are closed circulatory system meaning that the blood is contained within a network of tubes, or blood vessels. These blood are transported throughout the body with the help of the blood vessels. One blood vessels receives the blood from the body while the other blood vessels takes away the blood from the lungs. For example, in frogs, pigs, and humans, there are blood vessels that take in deoxygenated blood from the body while other blood vessels take oxygenated blood away from lungs. Earthworms, on the other hand, have dorsal blood vessels that take the blood to the dorsal part of the body while the ventral blood vessel takes the blood to the ventral side of the …show more content…
The reason behind pig’s cells and organs being used for these transplants are simply because they are inexpensive and easy to breed, have relatively large litters, have organs that are about the right size, and have a less chance of infecting humans rather than other animals. Pig cells are used for human transplants to treat diseases such as diabetes, Parkinson’s disease, Huntington’s disease, stroke and hearing loss. There are currency not many tissues that are able to be used for human transplant. A common tissue used for human transplant is the heart tissue of pigs. Material from pigs has been routinely and safely used for medical purposes for decades, with heart valves the best known example. Pig skin and pig valves have been used in human transplants when patients get an organ transplant from a human donor. These organs are used in this scenario as doctors stop the immune rejection with organs matched to the recipient’s tissue type and heavy doses of immunosuppressant drugs. The pig skin and values act as antibiotics circulating throughout the body. The evidence from animal models suggests that most pig organs will work properly in human
1. Compare the ratio of the lengths of the intestine in earthworms, frogs, pigs, and humans. What significance do the lengths have with respect to the organism?
Based on dissection, it was noted that the length of the intestine in earthworms, frogs, and humans all vary in sizes. The intestine of the earthworm is about two-thirds of the worm 's body length. The length of the small intestine of the frog is 3 feet while its large intestine is about 1 feet. A pig 's small intestine measures 6 feet while its large intestine measures about 2 feet. The length of a human 's small intestine is about 7 metres long and its large intestine is about 1.5 metres long. The small intestine is generally longer than the large intestine. The length …show more content…
All these organisms are closed circulatory system meaning that the blood is contained within a network of tubes, or blood vessels. These blood are transported throughout the body with the help of the blood vessels. One blood vessels receives the blood from the body while the other blood vessels takes away the blood from the lungs. For example, in frogs, pigs, and humans, there are blood vessels that take in deoxygenated blood from the body while other blood vessels take oxygenated blood away from lungs. Earthworms, on the other hand, have dorsal blood vessels that take the blood to the dorsal part of the body while the ventral blood vessel takes the blood to the ventral side of the …show more content…
The reason behind pig’s cells and organs being used for these transplants are simply because they are inexpensive and easy to breed, have relatively large litters, have organs that are about the right size, and have a less chance of infecting humans rather than other animals. Pig cells are used for human transplants to treat diseases such as diabetes, Parkinson’s disease, Huntington’s disease, stroke and hearing loss. There are currency not many tissues that are able to be used for human transplant. A common tissue used for human transplant is the heart tissue of pigs. Material from pigs has been routinely and safely used for medical purposes for decades, with heart valves the best known example. Pig skin and pig valves have been used in human transplants when patients get an organ transplant from a human donor. These organs are used in this scenario as doctors stop the immune rejection with organs matched to the recipient’s tissue type and heavy doses of immunosuppressant drugs. The pig skin and values act as antibiotics circulating throughout the body. The evidence from animal models suggests that most pig organs will work properly in human