Quizzie Questions 1 Flashcards
A cell that has undergone physiologic stress may adapt via which 2 mechanisms?
A.ischemia B. metaplasia C. depletion of ATP D. hypertrophy
Hypertrophy and metaplasia (Book pg4-5)
Which is the term indicating an increase in the number of cells has resulted from the proliferation of differentiated cells?
A. Hypertrophy B. hyperplasia C. atrophy D. metaplasia
Hyperplasia (book pg 4)
What is the term indicating a reversable change has occurred from one adult cell type by another adult cell type?
Metaplasia (book pg5)
Decreased cellular protein synthesis combined with increased protein degradation is the hallmark feature of which one of the following?
A. metaplasia B. dysplasia C. atrophy D. hyperplasia
Atrophy (book pg4)
Which morphological catergory of necrosis requires histological examinations to determine?
A. Coagulative B. liqufactive. C. Caseous D. Fibrinoid
Fibrinoid- ie there is a histological slide via note set-PH (book pg11)
The presence of lipid vacuoles within the cytoplasm of a cell(fatty changes) and most likely to occur following which type of injury?
A. Laceration. B. hypoxia. C. Irradiation. D. Crush injury
Hypoxia-PH (book pg 8)
Which of the following describes destructive fragmentation of the nucleus within the dying cell?
A. Karyorrhexis. B. pyknosis. C. Karyolysis. D. Nucleoside
A. Karyorrhexis (book pg9)
Mitochondria are resistant to the deleterious effects of hypoxia?
True or false?
False
Apoptosis may be stimulated by both irradiation and accumulation of improperly folded proteins?
True or false?
True
Phospholipases are enzymes within a cell that are most likely to be activated via \_\_\_\_\_\_\_? A. Mitochondrial damage B. Influx of calcium C. Depletion of ATP D. Oxidative stress
B. Influx of calcium (book pg13)
Select 3 Cellular response to an injurious stimuli depends on which three of the following? A. Duration of injury B. Type of injury C. Timing of injury D. Severity of injury
Duration of injury, type of injury, and severity of injury-PH
Reactive oxygen species are produced in all cells during normal cellular metabolism?
A. True
B. False
True-PH
The restoration of blood flow to an area of ischemia commonly causes damage to which 2 types of tissues? A. cerebral neurons B. nephrons of the kidney C. hepatocytes of the liver D. myocardium of the heart
Cerebral neurons, myocardium of the heart -PH
Caspase-8 are most likely to cleave and activate pro-apoptopic molecules in which pathway?
A. the mitochondrial pathway
B. the death receptor pathway
B. Death receptor pathway
Damage caused by free radicals is determined by their\_\_\_\_\_\_\_\_ and efficiency of removal. A. Presence of hydroxyl group B. Involvement with systemic circulation C. Rate of production D. Rate of degradation
C. Rate of Production
2 Best Answers Which 2 of the following are reactive oxygen species? A. Superoxide B. Hydrogen Peroxide C. Ethyl Alcohol D. Superoxide Dismutase
A. Superoxide and B. Hydrogen Peroxide
Ischemia injures tissues faster and more severely than does hypoxia.
A. True
B. False
A. True
Breakdown of the endometrium during the menstrual cycle is an example of physiologic apoptosis.
A. True
B. False
A. True
Calorie restriction inhibits the effects of aging.
A. true
B. False
True
Which of the following is a short repeated sequence of DNA of chromosomes that protects the end of the chromosomes from deteriotation or from fusion with neighboring chromosomes. A. Telomerase B. Chromatids C. Telomere D. Prostaglandins
C. Telomere
Deposition of calcium into an injured tissue is called. A. Dystrophic calcification B. Propagation C. Metastatic Calcification D. Pigmentation
A. Dystrophic Calcification
Disorders causing destruction of bone (osteolysis) will cause \_\_\_\_\_\_\_\_. A. Metastatic calcification B. Metastatic Turnover C. Dystrophic Calcification D. Dysraphism
A. Metastatic Calcification
The most common exogenous pigment is \_\_\_\_\_\_\_\_\_. A. Melanin B. Reactive oxygen species C. Carbon D. Silica
Carbon
Which morphological pattern of inflammation is associated with acne vulgaris? A Serous B Fibrinous C Purulent D Ulcerative
Purulent
Which morphological pattern of inflammation is demonstrated by this histological exam? A. Serous B. Fibrinous C. Purulent D. Ulcerative
pg 43- A. Serous
The resolution stage of an inflammatory reaction involves enzymatic degradation of the various chemical mediators of the reaction
T/F
True
Increased vascular permeability results in exudate of protein rich extravascular fluid?
T/F
True
Focal collections of pus are called \_\_\_\_\_\_\_\_. A Comedones B Cysts C Collectins D Abscesses
Abscesses