LM picture of Leydig cells shows the
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2%
Cells forming acini
42%
Reinke's crystalloids within their cytoplasm
0%
Branched cells with dark nuclei
56%
Polygonal cells among fenestrated blood capillaries.
The male intratesticular ducts include
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10%
Ejaculatory ducts
84%
Rete testis
4%
Epididymis
2%
Vas deferens
45. Which of the following is an effect of chemical mediators?
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5%
a) Increased vascular permeability.
10%
b) Chemotaxis
0%
c) Fever
86%
d) All of the above
46. Chemotatic factors may include the following except:
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0%
a) Leukotriene B4
5%
b) Chemokine
90%
c) Nitric oxide
5%
d) Bacterial products
47. Which of the following is true about fibrin?
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6%
a) Deposition of fibrin in inflammatory conditions is known as fibrosis
69%
b) Fibrin plays important functions in inflammation & repair
6%
c) Cellulitis is characterized by excess fibrin deposition
19%
d) All of the above
48. Which of the following statements is true about giant cells in inflammation?
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13%
a) They are most commonly seen in suppurative inflammation,
0%
b) They have a weaker phagocytic capacity than macrophages.
88%
c) They are more commonly seen in granulomas than in chronic non-specific inflammation
0%
d) All of the above
0%
e) None of the above
49. All of the following are features of cellulitis except:
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5%
a) Caused by Streptococcus hemolyticus infection.
20%
b) Pus is thin and sanguinous
45%
c) The main inflammatory cells are lymphocytes and plasma cells.
10%
d) Mainly occurs in loose tissues.
20%
. e) Most common in diabetics
50. One of the following is associated with marked tissue necrosis:
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0%
a) Silicosis
31%
b) Foreign body granuloma
6%
c) Sarcoidosis
63%
d) Tuberculosis.
51. Which of the following is not a feature of acute inflammation?
.
.
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90%
a) Persistent vasoconstriction.
5%
b) Vasodilatation
5%
c) Increased vascular permeability.
0%
d) Vascular stasis.
0%
e) Emigration of leucocytes
52. Which of the following is not a function of fibrin?
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50%
a) Opsonization
10%
b) Sealing of bleeding vessels
20%
c) Facilitation of movement of inflammatory cells
15%
d) Localization of inflammatory fields
5%
e) Facilitation of movement of fibroblasts during repair
53. Cells that engulf fibrin are:
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5%
a) Neutrophils
0%
b) Eosinophils
95%
c) Macrophages
0%
d) Lymphocytes
65. Immunohistochemistry is a powerful tool in diagnosing:
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0%
a) High stage tumors
0%
b) Low grade tumors
74%
c) Poorly differentiated tumors
26%
d) Metastatic tumors
66. Mutations of RAS gene is common in:
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61%
a) Thyroid cancer
28%
b) Breast cancer
6%
c) Lung cancer
6%
d) Neuroblastoma
67. The erbB2 is mutated in breast cancer by which of the following mechanisms?
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19%
a) Point mutation
14%
b) Chromosomal translocation
57%
c) Gene amplification
10%
d) Telomerase activation
69. Adenoma can arise from the following sites except:
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11%
a) Pituitary
7%
b) Ovary
15%
c) Mucosa of GIT
67%
d) Nasal mucosa
Adolescents have a problem with all of the following except:
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0%
a-understanding what goes on around them
27%
b-forming a stable identity
9%
c-the love of their parents
64%
d-lack of desire for the other sex
Language is the form of phonemes or words starts typically in children at the age of:
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40%
Six months
40%
One year
0%
. Three years
20%
- Two years