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Dissection: a blog by Nathanial Jacobs
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In biology
Dissection is usually applied to the examination of plants and animals. The term is also used in relation to mechanisms, computer programs, written materials, etc., as a synonym for terms such as reverse engineering or literary deconstruction. Dissection is usually performed by students in courses of biology, botany and anatomy and in association with medical and arts studies.
Vivisection refers to the dissection of a living animal, often for the purposes of physiological investigation and always under heavy sedation. However, the term is no longer widely used, in part because more sophisticated techniques have superseded it for many applications. The term is now almost entirely used in a pejorative sense by those who oppose animal testing of any sort.
Dissection is often performed as a part of determining a cause of death in autopsy (on humans) and necropsy (on animals) and is an intrinsic part of forensic medicine, such as would be practiced by a coroner.
History
Early systematic human dissections were carried out by the Greek physicians Herophilus of Chalcedon and Erasistratus of Chios in the early part of the third century BC. Before and after this time investigators appeared to largely limit themselves to non-human animals. Roman law forbade dissection and autopsy of the human body, so physicians such as Galen were unable to work on cadavers. Galen for example dissected the Barbary Macaque and other primates, assuming their anatomy was basically the same as that of humans.
Abu al-Qasim (Abulcasis) helped lay the foudations for modern surgery in 10th centruy CE, with his Kitab al-Tasrif, in which he invented numerous surgical instruments, including the first instruments unique to women,Bashar Saad, Hassan Azaizeh, Omar Said (October 2005). "Tradition and Perspectives of Arab Herbal Medicine: A Review", Evidence-based Complementary and Alternative Medicine 2 (4), p. 475-479 1. Oxford University Press. as well as the surgical uses of catgut and forceps, the ligature, surgical needle, scalpel, curette, retractor, surgical spoon, sound, surgical hook, surgical rod, and specula, and bone saw.Paul Vallely, How Islamic Inventors Changed the World, The Independent, 11 March 2006. Ibn al-Haytham (Alhacen) made important advances in eye surgery, as he correctly explained the process of sight and visual perception for the first time in his Book of Optics.
Human dissections were also conducted by the Arabian physician Ibn Zuhr (Avenzoar) (1091-1161) in al-Andalus, followed by several other Arabian physicians: Saladin's physician Ibn Jumay in the 12th century, Abd-el-latif in Egypt circa 1200, and Ibn al-Nafis in Syria circa 1242.

























