Oxyphil cells are present in the
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98%
parathyroid gland
0%
adenohypophysis
0%
neurohypophysis
3%
pineal gland
Oxyphil cells of the parathyroid gland are acidophilic due to the presence of many:
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25%
sER
0%
rER
0%
lysosomes
75%
mitochondria
lodination of the thyroglobulin occurs:
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78%
extracellular in the follicular lumen
19%
intracellular inside the follicular cell
3%
ntercellular
0%
inside the capillaryi
The secretion of parathyroid cells is regulated by:
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5%
Thyroid stimulating hormone
95%
Blood calcium level.
0%
Corticosteroid level
0%
T3 & T4
Pinealocytes of the pineal body
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2%
produce melatonin only.
10%
are astrocyte-like cells
7%
are called brain sand
81%
produce serotonin & melatonin
Melatonin is secreted from
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7%
chromaffin cells
0%
astroglia cells
5%
corticotrophs
89%
pinealocytes
Pinealocytes
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0%
secrete melatonin only
0%
secrete serotonin only
5%
appear as brain sand
95%
secrete melatonin and serotonin
6. The most powerful mechanical force in the body caused by myofibroblasts is:
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11%
a) Granulation tissue
83%
b) Wound contraction
0%
c) Wound dehiscence
6%
d) Type IV cartilage
5. Which of the following is the correct sequential order of the phases of healing?
Anonymous Quiz
7%
a) Remodeling, inflammation, hemostasis, and repair
48%
b) Inflammation, hemostasis, proliferation, and maturation
37%
c) Hemostasis, inflammation, repair, and remodeling
7%
d) Inflammation, maturation, proliferation, and hemostasis
7. Scar tissue extending beyond wound boundaries and usually doesn't regress:
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7%
a) Elastin
85%
b) Keloid
7%
c) Stable tissues
0%
d) Organization
8. Example of permanent cell is:
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97%
a) Nerve cell
3%
b) Surface epithelium
0%
c) Liver
0%
d) Kidney
9. Permanent cells are terminally differentiated cells usually confined which stage of the cell cycle
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93%
a) GO
7%
b) G1
0%
c) M
0%
d) G2
10. The following are components of granulation tissue except:
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8%
a) Fibroblasts
4%
b) Proliferate capillaries
16%
c) Myofibroblasts
72%
d) Platelets
13. Which one of the following is not a correct time-event match regarding wound healing by first intention?
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17%
a) Day 5-incision space is filled by granulation tissue
17%
b) 0 hours-neutrophils from wound margin infiltrate the cut
30%
c) Week 2-proliferation of granulation tissue
17%
d) Day5-maximal neovascularisation
17%
e) Month 2-scar consisting of connective tissue devoid of inflammation
14. The main growth factor considered the main fibrogenic factor is:
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21%
a) Fibroblast growth factor(FGF)
4%
b) Epidermal growth factor(EGF)
71%
c) Transforming growth factor beta (TGFb)
4%
d) Platelet derived growth factor (PDGF
19. In healing by primary intention:
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0%
a) There is a large tissue defect
10%
b) The tissue defect cannot be reconstituted
5%
c) It involves excessive granulation tissue
85%
d) An epithelial spur forms on the first day
20. Concerning the repair of a well opposed, clean surgical incision:
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19%
a) Dermal appendages destroyed by the incision usually recover
29%
b) New collagen begins to accumulate after the first week
5%
c) Granulation tissue does not occur
48%
d) There is an initial inflammatory response
21. Morphology of tissue scar includes all of the following except:
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0%
a) Pale in color
17%
b) Nearly avascular
78%
c) Composed of active fibroblasts & dense collagen
4%
d) Myofibroblasts help to reduce its size