Prosector

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Prosector and physician in a dissection. From "Anathomia", M. da Luzzi, 1459 Prosector anathomia mondino da luzzi 1495.gif
Prosector and physician in a dissection. From "Anathomia", M. da Luzzi, 1459

A prosector is a person with the special task of preparing a dissection for demonstration, usually in medical schools or hospitals. Many important anatomists began their careers as prosectors working for lecturers and demonstrators in anatomy and pathology.

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The act of prosecting differs from that of dissecting. A prosection is a professionally prepared dissection prepared by a prosector – a person who is well versed in anatomy and who therefore prepares a specimen so that others may study and learn anatomy from it. A dissection is prepared by a student who is dissecting the specimen for the purpose of learning more about the anatomical structures pertaining to that specimen. The term dissection may also be used to describe the act of cutting. Therefore, a prosector dissects to prepare a prosection.

Prosecting is intricate work where numerous tools are used to produce a desired specimen. Scalpels and scissors allow for sharp dissection where tissue is cut, e.g. the biceps brachii muscle can be removed from the specimen by cutting the origin and insertion with a scalpel. Probes and the prosector's own fingers are examples of tools used for blunt dissection where tissue may be separated from surrounding structures without cutting, i.e. the bellies of biceps brachii and coracobrachialis muscle were made clearer by loosening the fascia between the two muscles with a blunt probe.

Occupational risks

Generally, the risks to prosectors are low. Cadavers used for teaching purposes are embalmed before they are encountered by a prosector and students. Embalming fluid usually contains formaldehyde, phenol, Dettol, and glycerine which disinfect and kill pathogens within the cadaver. With exposure to embalming fluid, tissues and bodily fluids, such as blood, become fixed. Prosectors and students working with embalmed cadavers must always wear protective gloves, but that is more for protection against the harsh chemicals used in embalming, such as formaldehyde and Dettol, which can cause moderate to severe skin irritation.

Further to the protection that embalming provides against disease, educational institutions take great care in screening the cadavers accepted into their body donation programs. Cadavers are not accepted if they have a medical history of infectious disease such as tuberculosis and HIV/AIDS.

Prosectors for autopsies of diseased cadavers may run a high risk of suffering from health problems when caution is not used, because cadavers are not fixed when being dissected for autopsy. At least two diseases are named after prosectors:

Contracting infections caused by contaminated cadavers is a constant danger among prosectors, particularly if a skin puncture accident results from the sharp surgical instruments used in this kind of work (about 70% of pathology workers report having at least one percutaneous incident). In those cases, thin surgical gloves do not provide protection. There are many cases of pathologists dying of acute sepsis (blood poisoning) because of that. A famous historical case is that of Ernst von Fleischl-Marxow, an Austrian physician, pathologist and physiologist, who infected his finger during an autopsy and, due to the pain, became dependent on morphine and then cocaine, the latter at the instigation of his friend, Sigmund Freud.

Presently, AIDS presents a problem. Although it is difficult to contract it by a single puncture incident (the overall personal risk has been estimated to be 0.11% [1] ), at least one case has been reported [2] among pathologists.

The continuous respiratory exposure to formaldehyde, used to preserve cadavers, is also an occupational risk of prosectors, as well as medical students, anatomists and pathologists. Inhaled formaldehyde can irritate the eyes and mucous membranes, resulting in watery eyes, headache, a burning sensation in the throat, and difficulty breathing. Formaldehyde is listed as a potential human carcinogen.

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<span class="mw-page-title-main">Pathology</span> Study of the causes and effects of disease or injury, and how they arise

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<span class="mw-page-title-main">Body donation</span> Gifts of bodies for research and education

Body donation, anatomical donation, or body bequest is the donation of a whole body after death for research and education. There is usually no cost to donate a body to science; donation programs will often provide a stipend and/or cover the cost of cremation or burial once a donated cadaver has served its purpose and is returned to the family for interment.

<span class="mw-page-title-main">Embalming chemicals</span> Chemicals that prevent body decomposition

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John Andre Lee is a retired English pathologist who was formerly clinical professor of pathology at Hull York Medical School and consultant histopathologist at Rotherham General Hospital, later becoming the Rotherham NHS Foundation Trust's Director of Cancer Services. Lee gained a BSc and a PhD in physiology at University College London, and then a medical degree subsequently specialising in pathology.

<span class="mw-page-title-main">Cadaver</span> Dead human body

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A prosection is the dissection of a cadaver or part of a cadaver by an experienced anatomist in order to demonstrate for students anatomic structure. In a dissection, students learn by doing; in a prosection, students learn by either observing a dissection being performed by an experienced anatomist or examining a specimen that has already been dissected by an experienced anatomist.

The history of pathology can be traced to the earliest application of the scientific method to the field of medicine, a development which occurred in the Middle East during the Islamic Golden Age and in Western Europe during the Italian Renaissance.

<span class="mw-page-title-main">Gunther von Hagens</span> German anatomist and inventor of plastination

Gunther von Hagens is a German anatomist, businessman and lecturer. He developed the technique for preserving biological tissue specimens called plastination. Von Hagens has organized numerous Body Worlds public exhibitions and occasional live demonstrations of his and his colleagues' work, and has traveled worldwide to promote its educational value. The sourcing of biological specimens for and the commercial background of his exhibits has been controversial.

<span class="mw-page-title-main">Zoological specimen</span> Animal or part of an animal preserved for scientific use

A zoological specimen is an animal or part of an animal preserved for scientific use. Various uses are: to verify the identity of a (species), to allow study, increase public knowledge of zoology. Zoological specimens are extremely diverse. Examples are bird and mammal study skins, mounted specimens, skeletal material, casts, pinned insects, dried material, animals preserved in liquid preservatives, and microscope slides. Natural history museums are repositories of zoological specimens

References

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  2. Gańczak M, Boroń-Kaczmarska A, Dziuba I (2003). "Pathologist and HIV—are safe autopsies possible?". Pol J Pathol. 54 (2): 143–6. PMID   14575423.