ENH 220 Lecture Notes - Lecture 1: Rubella, Skeletal Muscle, Atherosclerosis

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Well-defined, characteristic structural changes in organs and tissues as a result of disease. No morphological abnormalities yet body functions are profoundly disturbed. Pathologist: someone who diagnoses and classifies diseases by examining cells and tissues. Clinician: physician that cares about his/her patients. Subjective manifestations such as pain or weakness. Physical findings or objective manifestations such as swelling or redness. Distinction between asymptomatic and symptomatic depends on extent. Causes: ge(cid:374)eti(cid:272) a(cid:271)(cid:374)o(cid:396)(cid:373)alities, a(cid:271)(cid:374)o(cid:396)(cid:373)alities i(cid:374) the (cid:374)u(cid:373)(cid:271)e(cid:396)s a(cid:374)d dist(cid:396)i(cid:271)utio(cid:374) of (cid:272)h(cid:396)o(cid:373)oso(cid:373)es, i(cid:374)t(cid:396)aute(cid:396)i(cid:374)e i(cid:374)ju(cid:396)(cid:455) as a (cid:396)esult of (cid:448)a(cid:396)ious age(cid:374)ts o(cid:396) a(cid:374) i(cid:374)te(cid:396)a(cid:272)tio(cid:374) of ge(cid:374)eti(cid:272) a(cid:374)d e(cid:374)(cid:448)i(cid:396)o(cid:374)(cid:373)e(cid:374)tal fa(cid:272)to(cid:396)s. I(cid:374)fla(cid:373)(cid:373)ato(cid:396)(cid:455) diseases: bod(cid:455) (cid:396)ea(cid:272)ts to i(cid:374)ju(cid:396)(cid:455) th(cid:396)ough a(cid:374) i(cid:374)fla(cid:373)(cid:373)ato(cid:396)(cid:455) p(cid:396)o(cid:272)ess. Tissue o(cid:396) o(cid:396)ga(cid:374) dege(cid:374)e(cid:396)atio(cid:374) as a (cid:396)esult of agi(cid:374)g o(cid:396) (cid:271)(cid:396)eakdo(cid:449)(cid:374) Meta(cid:271)oli(cid:272) diseases: distu(cid:396)(cid:271)a(cid:374)(cid:272)e i(cid:374) (cid:373)eta(cid:271)oli(cid:272) p(cid:396)o(cid:272)ess i(cid:374) (cid:271)od(cid:455) Dia(cid:271)etes, h(cid:455)pe(cid:396)- o(cid:396) h(cid:455)poth(cid:455)(cid:396)oidis(cid:373), fluid a(cid:374)d ele(cid:272)t(cid:396)ol(cid:455)te i(cid:373)(cid:271)ala(cid:374)(cid:272)e. Diseases (cid:449)ith si(cid:373)ila(cid:396)ities (cid:373)a(cid:455) (cid:374)ot (cid:374)e(cid:272)essa(cid:396)il(cid:455) (cid:271)e (cid:272)losel(cid:455) (cid:396)elated. Good health: (cid:373)o(cid:396)e tha(cid:374) the a(cid:271)se(cid:374)(cid:272)e of disease.

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