Tracing the pathway of a cheeseburger through the entire digestive Essay

Tracing the pathway of a cheeseburger through the entire digestive system - Essay Example The term "animal testing" means the procedures done on the bodies of the animals. It is majorly for the purposes of research into pure biology and ailments, evaluating the efficiency of new medicinal yields. Moreover, it is also meant for testing the health of human beings besides assessing the safety of the environment of consumer and industry products. Animal testing began a long time ago. The time dates back to the fourth and third centuries. Early Greek writers documented some of these early animals testing. Aristotle and Erasistratus were probably the first few individuals in the history of animal testing. The first person who dissected mammals like goats and pigs are Galen. He was among the very few physicians who lived in the by the then times of history. However, later on animal testing was introduced in Spain as an experimental method of testing the surgical operations and steps before using them in the doing surgery to us human beings. A surgical doctor, Ibn Zuhr (Avenzoar), introduced that notion. Later on in 1242, circulation of blood in mammals was provided by a scientist known as Ibn al-Nafis. The year 1996 also marked a very significant year in the history of animal testing. Successfully, the Dolly sheep was born. Dolly was cloned from an adult cell. It was the first in the history of animal testing. Ian Wilmut, Keith Campbell besides other individuals at Roslin Institute situated in Scotland, plus a biotechnology company that funded the whole process of cloning dolly. The main reason for cloning dolly was to confirm if the somatic cells would form a whole organism. Currently, animal testing is still in use in the in researchers that targets to get a solution to medical challenges from Alzheimer’s disease. Other challenges include spinal cord malfunctions, multiple sclerosis and many other states where there are no valuable in vitro model