Human Pathology (Cell Injury) (MLTS2202)
Biological Science - BS
Semester: Second Semester
Level: 200
Year: 2017
INT
RODUCTION TO HUMAN PATHOLOGY/ CELL INJURY
1. Hyperplasia is primarily operative in which of the following growth alterations?
a) Appearance of affected kidney in renovascular hypertension
b) Thickened bladder wall in a pt with urethral obstruction
c) Barrett's esophagus in a pt with gastroesophageal reflux
d) Enlarged left atrium in a pt with severe mitral stenosis
e) Galactorrhea in a woman with a prolactinoma
2. Which of the following disorders is an example of Coagulation necrosis?
a) Lobar pneumonia in an alcoholic
b) Hepatic absecess in a pt with amebiasis
c) Pseudomembranous colitis in a pt on ampicillin
d) Diminished brain mass in a pt with Alzheimer's disease
e) Embolus to the superior mesenteric artery leading to bowel infarction
3. In which of the following diseases would you expect a low arterial PO2 and a low oxygen saturation
(SaO2)?
a) Carbon monoxide poisoning
b) iron deficiency anemia
c) Decreased cardiac output
d) Respiratory acidosis
e) Cyanide poisoning
4. Which of the following disorders is an example of metaplasia?
a) Increased Goblet cells in mainstem bronchus of a smoker
b) squamous epithelium in the mainstem bronchus of a smoker
c) Proliferative endometrial glands in a woman on unopcssed estrogen
d) Hyperkeratosis of the skin in a pt with Psoriasis
e) Multinucleated giant cells in a granuloma
5. Hyperplasia is primarily operative in which of the following growth alterations?
a) Appearance of affected kidney in renovascular hypertension
b) Thickened bladder wall in a pt with urethral obstruction
c) Barrett's esophagus in a pt with gastroesophageal reflux
d) Enlarged left atrium in a pt with severe mitral stenosis
e) Galactorrhea in a woman with a prolactinoma
6. Which of the following disorders is an example of Coagulation necrosis?
a) Lobar pneumonia in an alcoholic
b) Hepatic absecess in a pt with amebiasis
c) Pseudomembranous colitis in a pt on ampicillin
d) Diminished brain mass in a pt with Alzheimer's disease
e) Embolus to the superior mesenteric artery leading to bowel infarction
7. In which of the following diseases would you expect a low arterial PO2 and a low oxygen saturation
(SaO2)?
a) Carbon monoxide poisoning
b) iron deficiency anemia
c) Decreased cardiac output
d) Respiratory acidosis
e) Cyanide poisoning
8. Which of the following disorders is an example of metaplasia?
a) Increased Goblet cells in mainstem bronchus of a smoker
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b) squamous epithelium in the mainstem bronchus of a smoker
c) Proliferative endometrial glands in a woman on unopossed estrogen
d) Hyperkeratosis of the skin in a pt with Psoriasis
e) Multinucleated giant cells in a granuloma
9. Concerning the overview of the cell injury:
a) Cell actively control the composition of their immediate environment but not their intracellular
milieu
b) Under physiological stresses or pathological stimuli/ cells are unable to undergo adaptation to
achieve new steady state
c) If an injury is too severe, the affected cells die
d)
10. The following factors may cause cells injury
a) Hypoxia and ischemia
b) Immunological reaction
c) Aging and genetic defects
d) Mitosis and meiosis
11. The following biochemical mechanisms can lead to cell injury
a) Loss of energy
b)Mitochondria] damage
c) Defect in plasma membrane permeability
d) Loss of calcium homeostasis
e) The interruption of cell division
12.The most common morphological apparent adaptive changes are
a) Atrophy
b) Hypertrophy
c) Hyperplasma
d) Metaplasia
e) Evolution and natural selection
13. These are characteristics of the cell membrane
a) Storage of information
b) Transport of materials
c) Scavenging of pathogens
d) The organization of variety of energy
e) The maintenance of steady state
14. The following diseases are environmental diseases
a) Life style diseases
b) The disease cause by exposure to chemicals
c) The disease cause by physical factors
d) The disease cause by gene defects
15. Concerning the human genome
a) Every cell in the human body has DNA with the same genetics information
b) Different cells perform different functions because they have different genetics materials
c) Different cells perform different functions because they have different genetics material but use
different part of it
d) All the cells of the body have 22 pairs of gonosomes and a pair of autosomes
16. Concerning the rnandelian genetics
a) If a genetic mutation is dominant the gene must be inherited
b) If the disorder is recessive the defective gene must be inherited from both parents
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c) One who inherits a single recessive mutation cannot pass the gene to his or her off springs
d) A disease linked to a gene defect on the X chromosome, meaning that the disease essentially as
recessive inheritance in women and dominance in men
17. The following diseases are abnormalities of autosomal chromosome
a) The "cri du chat" syndrome
b) The velocardiofacial syndrome
c) The down syndrome
d) The klinefelter syndrome
18. The following diseases are abnormalities of sex chromosome
a) The Turner syndrome
b) The Patau syndrome (trisomy 13)
c) The down syndrome
d) The Edward syndrome (Trisomy 18)
e) The sickle cell anemia
II. Give a brief definition of the following words
Pathology; disease; pathologist, diagnosis; diagnose
III. Diagnoses are made by three general categories of physicians or care providers. Complete the
following table giving the corresponding physician to the description.
Diagnose physician
Identify diseases by examining the patient history
Identify diseases by examining the cell and the tissues removed from the body
Identify diseases by imaging the intact body
IV. For each of the features described below, write the name of the corresponding cellular junction:
Feature
Name of junction
Virtually seals the space between two adjacent epithelial cells
Is a site of epithelial cell attachment to the basal lamina
Facilitates intercellular communication by small molecules
Is an intercellular junction connected to intermediate Filaments
V. Roughly sketch the cross-section of a mitochondrion and label the following: cristae, matrix,
mitochondrial DNA, and the membrane on which porins reside.
VI. For each of the descriptions below, choose between microvilli and cilia:
Description Microvilli or Cilia
Has a core of actin cytoskeleton
Is designed to move the cell surface layer of mucus
and debris
Is designed to increase the surface area available for transport across the
apical membrane
Has a well-
defined arrangement of
microtubules
Is a component of the "brush border"
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VII. For each of the descriptions on the left, write the corresponding letter from the list of terms on the
right:
Descriptions Terms
Deposition of calcium salts in dead or dying tissue
.
A. Atrophy
Is mediated by activation of caspases
B. Hpertrophy
Increase in the size of cells/tissues.
C. Hyperplasia
Replacement of one cell type with another
. D. Apoptosis
Decrease in the size of cells/tissues.
E.(Coagulative)
necrosis
Deposition of calcium salts in normal tissues
F. Metastatic calcification
Are responsible for lipid peroxidation & DNA damage
. G. Dystrophic calcification
Adaptive increase in the number of cells.
H. Free radical
Results in random and diffuse DNA breakdown
H
.
1. Metaplasia
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