NAME

Question types


Start with


Question limit

of 36 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. Dry Gangrene
  2. Cellular Accumulations - Lipids and Carbohydrates
  3. Metaplasia
  4. Chemical Asphyxiants
  5. Cellular Accumulations - Water
  1. a
    reversible replacement of one mature cell type by another, sometimes less differentiated, cell type; develops from a reprogramming of stem cells that exist on most epithelia or of undifferentiated mesenchymal cells present in connective tissue; Normal process (such as uterus); uniform to each other and relatively organized; is REVERSIBLE
  2. b 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
  3. c usually result of COAGULATIVE necrosis; SKIN becomes very dry and shrinks resulting in wrinkles, and its color changes to dark brown or black;
  4. d cellular swelling, most common degenerative change, is caused by shift of extracellular water into cells; usually occurs in spleen, liver, CNS; cisternae of ER become distended, rupture, and then unite to form large vacuoles that isolate water from cytoplasm (called vacuolation); results in oncosis (hydropic degeneration)
  5. e either prevent the delivery of oxygen to the tissues or block its utilization; doesn't allow hemaglobin to attach to oxygen or doesn't allow O2 to pass alveoli; Carbon Monoxide is the most common; Cyanide acts as an asphyxiant by combining w/ferric iron atom in cytochrome oxidase, blocking the intracellular use of oxygen, has same cherry fred appearance as a carbon monoxide intoxication; Hydrogen Sulfide (sewer gas) that may have brown-tinged blood in addition to nonspecific signs of asphyxiation

5 Multiple choice questions

  1. (infiltration); intracellular accoumulation of abnormal amounts of various substances and the resultant metabolic disturbances; results not only from sublethal, sustained injury by cells but also result from normal (but inefficient) cell function; Normal cellular substances ( excess water, proteins, lipids, carbohydrates) or abnormal substance (endogenous - product of abnormalmetabolism or synthesis, exogenous - infectious agents or minerals)
  2. lack of sufficient oxygen; the single most common cause of cellular injury; can result from reduced amount of oxygen in air, loss of hemoglobin or decreased efficacy of hemoglobin, decreased production of RBCs, diseases of repiratory or cardovascular systems, and poisoning of the oxidative enzymes w/in cell; can induce inflammation and inflamed lesions can become hypoxic; most common form is ischemia (reduced blood supply)
  3. 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)
  4. mutations in protien can slow protein folding so cell is filled with unfolded proteins, which might not be in the proper format to be used; also, metabolites (used to digest some proteins) are released from lysosomes can damage cellular organells and excessive amounts of protien in cytoplsm push against cellular organells, disrupting organelle function and intracellular communication; accumulates primarily in epithelial cells of renal confoluted tubule and antibody-forming plamsam cells (B-lymphocytes)
  5. 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 True/False questions

  1. Cellular Injury Induced by Ischemia - Reversible
    1) obstruction or cessation of blood flow; 2) Ischemia, 3a) decrease mitochondrial oxygenation, 4a) severe vaculization of mitochondria (end); 4b) decrease ATP; 5a) decrease Na+ pump, 6) increase intracellular Na, xcellular K,intracellular Ca, 7) increase H2O, 8) increase acute cellular swelling, 5b) 5+6+7 is dilation of endoplasmic reticulum, 6) detatchment of ribosomes, 7) decrease protein synthesis, 8) lipid deposition, 5b) increase glycolysis, 6) decrease glycogen, 7) increase lactate, 8) decrease pH, 9a) nuclear chromatin clumping, 9b) increase swelling of lysosomes

          

  2. Fat Necrosis
    is cellular dissolution caused by power enzymes, called LIPASES, that occur in BREAST, PANCREAS, and, other ABDOMINAL ORGANS; Lipases break down triglycerides, releaseing free fatty acids that then combine with calcium, magnesium and sodium ions, creating SOAPS (saponification); Necrotic tissue appears opaque and chalk-white.

          

  3. 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

          

  4. Hyperplasiaan increase in the number of cells resulting from an increased rate of cellular division; as a response to injury, occurs when ijury has been severe and prolonged enough to have caused cell death; cells still relatively uniform, almost normal looking, just more of them; hormonal and pathologic

          

  5. 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.

          

Create Set