ADVANCED PATHOPHYSIOLOGY 1 Flashcards
What is an … atypical hyperplasia, deranged cell growth with increase in cell size, change in shape & appearance.
Dysplasia
What are the symptoms of Cellular Injury: Reversible?
1 Cell swelling & Vacuoles
2 Blebbing of plasma membrane
3 Mitochondria swelling
4 ER dilatation & Fatty changes
What are the symptoms of Cellular Injury: Irreversible?
1 Enzymatic digestion of dead cell elements 2 Denaturation of proteins 3 Autolysis - lysosomal enzymes 4 Cytoplasm - increased eosinophilia 5 Nucleus - nonspecific breakdown of DNA 6 pyknosis (shrinkage) 7 karyolysis (fading) 8 karyorrhexis (fragmentation)
Cellular Injury Mechanisms: Name the (4) Hypoxic injury?
1 Ischemia 2 Anoxia 3 Cellular responses a. Decrease in ATP, causing failure of sodium- potassium pump and sodium-calcium exchange b. Cellular swelling 4 Reperfusion injury
Cellular Injury Mechanisms: Name the (5) Free radicals and reactive oxygen species?
1 Electrically uncharged atom or group of atoms
having an unpaired electron
2 Lipid peroxidation
3 Alteration of proteins
4 Alteration of DNA
5 Mechanisms for the inactivation of free radicals
Cellular Injury Mechanisms: Name the (5) Chemical Injury?
1 Lead 2 Carbon monoxide 3 Ethanol 4 Mercury 5 Social or street drugs
Chronic Cell Injury:
1 Non-lethal injury causes subcellular changes
a. characteristic in certain pathologic conditions
b. Changes in mitochondria seen in various
conditions in some of which there is an
increase in the number of mitochondria with
various morphological abnormalities
2 Cytoskeletal changes with formation of
distinctive intracellular inclusions such as:
a. Mallory body
b. Neurofibrillary tangles
c. Lewy body
Unintentional & Intentional Injuries:
What is the definition and the (4) symptoms of Blunt force injuries:
DEFINITION: Application of mechanical energy to
the body resulting in the tearing,
shearing, or crushing of tissues
1. Contusion & hematoma
2. Abrasion
3. Laceration
4. Fractures
FINISH THIS SENTENCE:
Bruise is more superficial VS. Hematoma which …
… involves deeper tissues
Women bruise more easily than men BECAUSE OF:
excess of subcutaneous fat.
Elders bruise more often BECAUSE OF:
… skin thinner due to stretching and aging
Lighter skin complexion show(s) [MORE / LESS] bruising than people with darker skin.
MORE
Unintentional & Intentional Injuries: List the (4) types of Sharp force wounds:
- Incised wounds
- Stab wounds
- Puncture wounds
- Chopping wounds
What causes Asphyxial Injuries and what are the (4) types of Asphyxial injuries?
DEFINITION: Caused by a failure of cells to receive or use oxygen 1. Suffocation 2. Strangulation A. Hanging B. ligature C. manual 3. Chemical 4. Drowning
Infectious Injury depends on (3) things… What are they?
- Pathogenicity of a microorganism
- Virulence of a microorganism
- Disease-producing potential
A. Invasion and destruction
B. Toxin production
C. Production of hypersensitivity reactions
Immunologic & Inflammatory Injury:
These are caused by (3) things: What are they?
- Phagocytic cells
- Immune and inflammatory substances
A. Histamine
B. antibodies
C. lymphokines
D. complement
E. enzymes - Membrane alterations
Injurious Genetic Factors: List (2) types and give (2) examples?
- Nuclear alterations
- Alterations in the plasma membrane structure,
shape, receptors, or transport mechanisms
Examples - Sickle cell anemia
- muscular dystrophy
Injurious Nutritional Imbalances:
Essential nutrients are required for cells to function normally … List two types of Injurious Nutritional Imbalances?
- Deficient intake
2. Excessive intake
Temperature Extremes:
What does Hypothermic injury do?
Slows cellular metabolic processes