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5 Written questions

5 Matching questions

  1. Hypertrophy
  2. Suffocation
  3. Wet Gangrene
  4. Cellular Accumulations - Glycogen
  5. Liquefactive Necrosis
  1. a oxygen failing to reach the blood, can result from lack of O2 in environment (entrapment in enclosed space or filling enviro w/suffocating gas), or blockage of external airways (compression of chest, choking)
  2. b
    developes when NEUTROPHILS invade the site, causing LIQUEFACTIVE necrosis; usually occurs in INTERNAL ORGANS, causing site to beome cold, swollen and black; foul odor is present, and if systemic symptoms become severe, death can ensue; Thrombisis/embolism (blockage of blood), strangulated hernia (no adequate O2 or blood), valvulus (twist of intestine), intussusception (intestine falling into self)
  3. c an increase in the size of cells and consequently in size of affected organ; heart and kidneys are very prone; associated with increased accumulation of protein in the cellular components (PM, ER, mitochondrea) and NOT with an increase in cellular fluid; can be physiologic or pathologic; is REVERSIBLE
  4. d seen in genetic disorders called 'glycogen storage disease' and in disorders of glucose and glycogen metabolism; results in excessive vacuolation of cytoplasm (like water); most common cuase is diabetes mellitus; when not storing glucose or glycogen correctly, breakdown in energy of cell
  5. e
    commonly results from ischemic injury to neurons and glial cells in BRAIN; dead brain tissue is readily affected because brain cells are rich in digestive HYDROLITIC ENZYMES and lipids and the brain contains little connective tissue; Cells are digested by their own HYDROLASES so the tissue becomes soft, liquefies and segregates from healthy dtissue, forming cytsts; Can be caused by BACTERIAL INFECTION, especially Staphylococci, Streptococci, and Escherichia coli.

5 Multiple choice questions

  1. abnormal intercellular accumulation of carbohydrates and lipids; priamarily found in spleen, liver, and CNS; can cause "fatty liver": as lipids fill cells, vacuolation pushes the nucleus and other organelles aside; liver's outward appearance is yellow and greasy; Alcohol abuse most common cause

  2. Necrosis is caused by exogenous injury whereby cells are swollen and have nuclear changes in ruptured cell membrane; Apoptosis is single cell death. It is genetically programmed (suicide genes) and depends on energy. Apoptotic bodies contain part of nucleus and cytoplasmic organelles, which are ultimately engulfed by macrophages or adjacent cells; Cell membrane stays intact but has 'lubbing'; happenes throughout life and is very benificial component

  3. refers to death of tissue from SEVERE HYPOXIC INJURY, commonly occuring beause of arteriosclerosis, or blockage of major arteries, particularly those in LOWER EXTREMITIES; With hypoxia and subsequent bacterial invasion the sittues uncergo necrosis; can be DRY, WET, or GAS
  4. reduced blood supply; often caused by gradual narrowing of arteries (artiosclerosis) and complete blockage by blood clots (thrombosis); progressive hypoxia caused by gradual arterial obstruction is better tlerated than acute anoxia (total lack of oxygen)
  5. cuased by failure of cells to receive or use oxygen; deprivation of oxygen may be partial (hypoxia) or total (anoxia); grouped into 4 gneral categories; suffication, strangulation, chemical, and drowning

5 True/False questions

  1. Necrosisthe sum of cellular changes after local cell death and the process of cellular self-digestion, knon as autodigestion (autolysis); Damage to the plasma membrane and cell structures; 6 Major Types of Necrosis are Coagulative necrosis, Liquefactive Necrosis, Caseous Necrosis, Fat Necrosis and Gangrenous Necrosis

          

  2. Gas Gangrenerefers to a special type of gangrene cause by INFECTION of injured tissue by one of many species of Clostridium; these anaerobic bacteria produce HYDROLYTIC ENYMES and TOXINS that detroy connective tissue and cellular membranes and cause bubbles of gas to from in muscle cells; this can be fatal if enzymes lyse the membrane of RBCs, dstorying thier O2 carrying capasity; Death is caused by shock.

          

  3. Hydropic Degeneration (any type of hypoxia)
    very common w/any hypoxia, even as momentary as leg falling asleep; can be reversed; 1) injury, 2) ATP production decreases, 3) sodium and water move into cell, Potassium moves out of cell, 4) Osmotic pressure increases 5) more water moves into cell, 6) cisternae of endoplasmic reticulum distend, rupture, and form vacuoles, 7) extensive vacuolation, 8) hydropic degeneration

          

  4. Caseous Necrosis
    refers to death of tissue from SEVERE HYPOXIC INJURY, commonly occuring beause of arteriosclerosis, or blockage of major arteries, particularly those in LOWER EXTREMITIES; With hypoxia and subsequent bacterial invasion the sittues uncergo necrosis; can be DRY, WET, or GAS

          

  5. Atrophyan increase in the size of cells and consequently in size of affected organ; heart and kidneys are very prone; associated with increased accumulation of protein in the cellular components (PM, ER, mitochondrea) and NOT with an increase in cellular fluid; can be physiologic or pathologic; is REVERSIBLE

          

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