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	Dissection - Wikipedia, the free encyclopedia
		Dissection is usually the process of disassembling and observing something to determine its internal structure and as an aid to discerning the function and relationships of its components.
		Dissection is usually performed by students in courses of biology, botany and anatomy and in association with medical and arts studies.
		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.
	en.wikipedia.org /wiki/Dissection (250 words)

	MedlinePlus Medical Encyclopedia: Aortic dissection
		Aortic dissection is a condition in which there is bleeding into and along the wall of the aorta (the major artery from the heart).
		Aortic dissection involves bleeding into and along the wall of the aorta (the major artery from the heart), most often because of a tear or damage to the inner wall of the artery.
		Aortic dissection may also be associated with other injury, infection, congenital (present from birth) weakness of the aorta, collagen disorders (such as Marfan's syndrome, pseudoxanthoma elasticum, Ehlers-Danlos syndrome, relapsing polychondritis, or abdominal aortic aneurysm).
	www.nlm.nih.gov /medlineplus/ency/article/000181.htm (742 words)

	Dissection Tiling
		Dissection has some potential application to random generation of points; it is easy to generate uniformly distributed points in a square, so by dissecting the square to another shape one can generate points in that shape.
		This dissection tiling of the nonagon [original, Dec 1995], involving three different strips with straight boundaries, must be aperiodic: the strips have incommensurate periods, and one must alternate the strips in an aperiodic way to achieve the correct density of each type of piece.
		Several different dissection tilings are possible for inputs consisting of a mixture of pentagons and decagons, depending on the ratio between the two shapes.
	www.ics.uci.edu /~eppstein/junkyard/distile (1634 words)

	Fetal pigs are good dissection specimens. (Site not responding. Last check: 2007-11-06)
		Fetal pigs are not bred for the purpose of dissection.
		Dissection engages students in "observational and kinesthetic learning that instills a recognition an appreciation for the three dimensional structure of the animal body, the interconnections between organs and organ systems, and the uniqueness of biological material."(2)
		Dissection impresses on students the normal variation that is present in the natural world.
	www.goshen.edu /bio/PigBook/dissectionadvantages.html (312 words)

	Aortic Dissection \| Principal Health News
		An aortic dissection should be suspected if the pulse on the left side is different or delayed from the one on the right, or if the pulse in the leg differs or is delayed from the pulse in the legs.
		Aortic dissections are generally classified as Type A, referring to those that occur in the ascending aorta (the part closest to the heart), and Type B, all those not involving the ascending aorta.
		Type A dissections, because they involve the early part of the aorta and have the potential to block blood flow to the brain, require immediate medication to reduce blood pressure, followed by surgery to repair the dissection.
	www.principalhealthnews.com /topic/aorticdissection (1570 words)

	THE MERCK MANUAL, Sec. 16, Ch. 211, Diseases Of The Aorta And Its Branches
		Dissection may originate anywhere along the aorta, but the most common sites are the proximal ascending aorta within 5 cm of the aortic valve and the descending thoracic aorta just beyond the origin of the left subclavian artery.
		Another anatomic classification designates dissection involving the ascending aorta as type A and that confined to the descending thoracic aorta as type B. Many physicians simply refer to dissection of the ascending aorta as proximal, and that of the descending aorta as distal.
		Medical therapy is generally recommended for patients with distal aortic dissection, except those in whom the dissection may have leaked, those with limb or visceral ischemia, and those with symptomatic or enlarging aneurysms.
	www.merck.com /mrkshared/mmanual/section16/chapter211/211b.jsp (1455 words)

	Dissection: Alternatives
		Several states have already adopted laws ensuring that, "students who have strong feelings against dissection, cannot be forced to participate." The law also states that a student's grade cannot be lowered if a student objects to dissection and that an alternate project, be made available.
		Dissection is a personal decision and as such no one should fault another for their decision, to participate or decline from this activity.
		Cow's eye Dissection Step by step on-line dissection, or you may download a PDF file and practice off-line or save it to disk and share it with your class.
	www.suite101.com /article.cfm/science_for_kids/14975 (883 words)

	National Anti-Vivisection Society - Animals in Education - Main Page
		When dissection was introduced into the educational curriculum in the 1920s, it was thought to be a good learning tool in the study of anatomy, physiology and the theory of evolution.
		Dissection teaches students that animal life is expendable and unimportant.
		When a student exercises his or her right not to dissect, they are helping to create an environment where respect for animals is considered the norm.
	www.navs.org /education/education_main.cfm?SectionID%3DEducation (397 words)

	Core77 Articles: Dissection: The autopsy of a Product
		Dissection is a Core 77 feature segment focused on understanding how the synergy of materials, manufacturing techniques, and design lead to innovative products.
		It is an understanding of a product’s life, and through its dissection, how well it lived.
		As is the case of any scientific dissection, the ability to learn about our specimen begins with the quality of the cadaver.
	www.core77.com /reactor/07.04_petro01.asp (4728 words)

	New England Anti-vivisection Society (NEAVS)
		Dissection is the observing or cutting into a dead animal for the purposes of learning anatomy or physiology.
		Some veterinary schools' curricula contain dissection labs, but progressive schools provide students with ethically-sourced cadavers (for example, donated cadavers of animals who died of natural causes) and do not require terminal surgery labs (although such labs may still be offered as an elective in less progressive institutions).
		Environmental issues: Dissection's negative impact on the environment due to toxic chemicals and degradation of natural resources prompts many people to feel dissection is wrong.
	www.neavs.org /esec/animals_education/dissection_description.htm (519 words)

	Dissection Campaign Packet
		Dissection vs. Alternatives: A Cost Comparison compares the costs of dissection materials and three different dissection alternatives (the cat, fetal pig, and bullfrog) over a three-year period.
		Dissection vs. Alternatives: Comparative Studies is a list of scientific references that demonstrate that students learn the material as good as, if not better than, students who dissect animals.
		Attitudes Towards Dissection is an annotated list of studies that show both teachers' and students' opinions on the use of animals in the classroom and the use of alternatives.
	www.hsus.org /ace/11369 (707 words)

	Limitations on Dissection during the Renaissance
		Although dissection was fairly common during the Renaissance, there were cultural factors that interfered with the practice.
		Thus, the pope felt that Leonardo was violating the sacred religious principles held by the church by dissecting and watching dissections of human bodies.
		Few people would offer the corpse of their friend or relative for dissection due to the humiliation of the process, in which the naked body of the corpse would lie on a table to be opened and prodded in front of public viewers (Park 18).
	www.umd.umich.edu /casl/hum/eng/classes/220/KRLeo2.html (949 words)

	[Regents Prep Living Environment] Laboratory: Dissection
		Before beginning a dissection, it is important to have an understanding of some of the basic directional terminology associated with the dissection of specimens.
		The pictured dissection equipment from left to right is (1.) a teasing or dissection needle which used to pull apart muscle tissue, (2) dissecting scissors which are used to cut through tissue, and (3) a scalpel, which is a knife used to slice through and cut tissue.
		Another purpose of dissection is to allow the comparison of organisms in terms of their organs and relative complexities.
	regentsprep.org /Regents/biology/units/laboratory/dissection.cfm (649 words)

	eMedicine - Dissection, Carotid Artery : Article by Sean O Henderson, MD (Site not responding. Last check: 2007-11-06)
		Dissections are usually subadventitial (between the media and adventitia or within the media), creating a false lumen that can cause stenosis, occlusion, or pseudoaneurysm of the vessel.
		Approximately 20% of strokes in the young are caused by carotid artery and vertebral artery dissections in the neck, compared to 2.5% in older patients.
		Dissection of the intracranial part of the internal carotid artery is rare at any age.
	www.emedicine.com /emerg/topic82.htm (2897 words)

	eMedicine - Dissection, Aortic : Article by John Wiesenfarth, MD, MS, FACEP, FAAEM (Site not responding. Last check: 2007-11-06)
		Thoracic aortic dissections should be distinguished from aneurysms (ie, localized abnormal dilation of the aorta) and transections, which are caused most commonly by high-energy trauma.
		The pain of aortic dissection typically is distinguished from the pain of acute myocardial infarction (AMI) by its abrupt onset.
		Dissections involving the arch are more complicated that those involving only the ascending aorta because the innominate, carotid, and subclavian vessels branch from the arch.
	www.emedicine.com /EMERG/topic28.htm (6465 words)

	PETAKiDS > Save animals > Animal Testing / Dissection > Cutout Dissection
		Animal dissection, which was first used in classrooms in the early part of last century, is still being used in some [name of school] classes.
		A student’s choice to dissect or not to dissect shall be respected by all school faculty, and the student shall be treated in a nonjudgmental manner.
		All students must be informed in writing of their option to choose not to dissect at the beginning of each semester during which dissection is scheduled, a minimum of three weeks prior to the dissection.
	www.petakids.com /disindex.html (1979 words)

	Res00016 Medical Student Dissection of Cadavers Improves Performance ......
		The dissections for the entire course were divided into 18 regional dissection units and each student was assigned to dissect one third of the regional units; the other two-thirds of the material was learned from the partner-prosected cadavers.
		Every dissection team (two students) performed a total of six dissections, which they were then responsible for teaching to their group (four other students), and graded both for quality of dissection and effectiveness of teaching during a 30 minute Teaching Session (see below).
		Even with using the practical exams as the standard of performance, however, the act of dissection confers only a modest advantage for the students dissecting, and the teaching of the material by the students may be of as much value as the actual, hands-on dissection.
	www.med-ed-online.org /res00016.htm (3625 words)

	Gale Encyclopedia of Medicine: Radical neck dissection (Site not responding. Last check: 2007-11-06)
		Radical neck dissection is a group of surgical operations used to treat cancers in the head and neck.
		A "functional" radical neck dissection removes the superficial and deep cervicalis fascias (fibrous tissue at the neck, below the skin) and the lymph nodes, but leaves most of the muscles that are removed during a regular radical neck dissection.
		In primary neck dissection, only the primary tumor and clinically obvious lymph node metastases (tumors that have developed away from the original one) are removed.
	www.findarticles.com /p/articles/mi_g2601/is_0011/ai_2601001158 (579 words)

	Aortic Dissection
		Aortic dissection is a tear or partial tear in the lining of the largest blood vessel in the body, the aorta.
		Aortic dissections are commonly found in people with high blood pressure, arteriosclerotic vascular disease, in individuals with a family history of aortic (or thoracic) dissection and more rarely associated with congenital cardiovascular disorders (Marfan’s syndrome, Ehlers-Danlos syndrome, and congenital valvular disorders).
		The key to diagnosing an aortic dissection is to confirm that it is in fact a dissection and not a heart attack, and which type it is (as the treatment options vary significantly).
	www.hearts.sutterhealth.org /health/conditions/aortic_disst.html (797 words)

	Starfish Dissection (Site not responding. Last check: 2007-11-06)
		Eggs of starfishes and sea urchins can readily be obtained in quantity and fertilized as needed; hence, they serve for study in embryonic development and in many experimental researches on animal eggs.
		EXTERNAL DISSECTION A. Study a fluid-preserved specimen in a pan of water and identify: 1.
		INTERNAL DISSECTION With the starfish in water and the aboral surface uppermost, use stout scissors to cut off the extreme tip of each arm of the trivium.
	www.d91.k12.id.us /www/skyline/teachers/robertsd/starfish.htm (624 words)

	Radical neck dissection
		Radical neck dissection is an operation used to remove cancerous tissue in the head and neck.
		Radical neck dissections are done in a hospital under general anesthesia by a head and neck surgeon.
		As a result, it is common following radical neck dissection for a person to have stooped shoulders, limited ability to lift the arm, and limited head and neck rotation and flexion due to the removal of nerves and muscles.
	www.healthatoz.com /healthatoz/Atoz/ency/radical_neck_dissection.jsp (993 words)

	"inQuiry Almanack" - BioPoint - May, 1998
		During the crayfish dissection, we first observed many of the external parts of the anatomy.
		The fifth and final dissection of the invertebrate unit was of a squid.
		After completing the dissections was had a test, or lab practical.
	www.fi.edu /qa98/biology/biopoint9.html (494 words)

	Animal Protection Institute - Alternatives to Dissection (Site not responding. Last check: 2007-11-06)
		Cast in explicit detail, this "dissectable" human brain allows students to carefully explore the spatial and functional relationships of the pineal gland, quadrigeminal bodies, optic thalamus, nerve roots and ventricles.
		Dissection and Anatomy Videotapes: Complete Series is an alternative to live dissections.
		The Dissection of the Bullfrog is a set of 50 photographic slides taken from actual frog dissections.
	www.api4animals.org /doc.asp?ID=685 (3985 words)

	super book! - Dissections: Plane & Fancy
		A geometric dissection is a cutting of one or more figures into pieces that can be rearranged to form other figures.
		The method works not just for the particular dimensions shown, but for any in which the ratio of the sidelength of the medium-sized star to that of the small star is at least the square root of 3.
		A java-powered hinged dissection for the Pythagorean Theorem and...
	www.cs.purdue.edu /homes/gnf/book.html (553 words)

	Dissection Alternatives / a Physicians Committee for Responsible Medicine (PCRM) site
		Kerrie wrote PCRM from the Greater Toronto Area to tell us about her victory to save the animal she was meant to dissect in a biology lab.
		The bright 17-year-old high school student recently discussed her concerns with a teacher who was planning a dissection exercise.
		When taken from breeding facilities, animals invariably suffer as they are raised, prepared, and killed for dissection.
	www.dissectionalternatives.org (227 words)

	BNR Metal Pages -- Dissection (Site not responding. Last check: 2007-11-06)
		Dissection is heralded as one of the founders of the so-called Gothenburg sound, which basically adds a melodic touch (often in the form of Maiden-ish twin guitar riffs) to death metal.
		Though the band's popularity was still rising, by 1997 internal strife amongst the band members led to most of the band leaving the band for one reason or another (two of them, Johan Norman and Tobias Kellgren, eventually formed Soulreaper), leaving founder Jon Nödtveidt bandless.
		Later, in 1998, Nödtveidt was convicted of murder and sentenced to prison, effectively putting Dissection on indefinite hold.
	www.bnrmetal.com /groups/diss.htm (170 words)

	KIDS & TEENS EDUCATION \| LCA - Last Chance for Animals
		Dissection is the cutting into of a dead animal to learn about the anatomy or physiology of the animal.
		Dissection involves cutting into a dead animal while vivisection entails cutting into or dissecting a live animal.
		Tell him that you do not intend to participate in the dissection(s) because of your "sincerely held religious and moral beliefs about the sanctity of all life." Be firm, calm, and clear when explaining that dissection conflicts with your beliefs.
	www.lcanimal.org /edu/edu_005.htm (961 words)

	National Association of Biology Teachers (Site not responding. Last check: 2007-11-06)
		NABT encourages the presence of live animals in the classroom with appropriate consideration to the age and maturity level of the students (elementary, middle school, high school or college).
		When the teacher determines that the most effective means to meet the objectives of the class do not require dissection, NABT acknowledges the use of alternatives to dissection including, models and the various forms of multimedia.
		NABT encourages teachers to be sensitive to substantive student objections to dissection and to consider providing appropriate lessons for those students where necessary.
	www.nabt.org /sub/position_statements/animals.asp (337 words)

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