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5 Written questions

5 Matching questions

  1. Hypertrophy
  2. Cellular Injury Induced by Ischemia - Irreversible
  3. Metaplasia
  4. Apoptosis vs Necrosis
  5. Hydropic Degeneration (any type of hypoxia)
  1. a
    membrane damage, 2a) loss of phospholipids, alterations of cytoskeleton, activtation of inflammation (complement, cytokines, and leukocytes), increase free radicals, lipid breakdown; 3a) release of enzymes (CPK, LDH) (end), 3b) increase CA influx; 2b) increase swelling of lysosomes, 3) increased release of lysosomal enzymes (hydrolases), 4) cellular digestion (autodigestion)
  2. b
    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
  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
    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
  5. e
    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

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. "dropping off" is an important distinct type of cell death taht differs from necrosis in several ways; is an active process of cellular self-destruction called programmed cell death and is implicated in both normal and pathologic tissue changes; Cells need to die; otherwise, endless proliferation would lead to gigantic bodies; occurs in 1) severe cell injury, 2) accumulation of misfoled proteins, 3) infections, 4) obstruction in tissue ducts; When cell injury exceeds repair mechanisms, the cell triggers apoptosis
  3. classified as necrosis and apoptosis; Necrosis characterized by rapid loss of plasma membrane structure, organelle swelling, mitochondrial dysfunction and lack of typical features of apoptosis; Apoptosis is known as regulated or programmed cell process characterized by the "dropping off' of cellular fragments called apoptotic bodies
  4. ATP deletion, Reactive Oxygen Species, Ca++ entry, Mitochondrial damage, Membrane damage, Protein misfolding/DNA damage - Table 3-2
  5. 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)

5 True/False questions

  1. Dry Gangrene
    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)

          

  2. Fat 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

          

  3. Coagulative Necrosis
    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.

          

  4. Drowningthe 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

          

  5. Cellular Injuryclassified as necrosis and apoptosis; Necrosis characterized by rapid loss of plasma membrane structure, organelle swelling, mitochondrial dysfunction and lack of typical features of apoptosis; Apoptosis is known as regulated or programmed cell process characterized by the "dropping off' of cellular fragments called apoptotic bodies

          

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