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This quiz includes questions on wound healing and repair. Good luck!

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Wound healing and repair

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Question 1
Which of the following is not true of stroma cells?
A
They provide structural and mechanical support to the organ
B
An example is cardiac muscle cells
C
They provide nutrition to the organ
D
An example is nerves
E
An example is connective tissues
Question 2
Which of the following is not a component of connective tissue?
A
Proteoglycans
B
Glycosaminoglycans
C
Elastin
D
Epithelial cells
E
Collagen
Question 3
Which of the following does not occur during the proliferative stage of wound healing?
A
Angiogenesis
B
Epithelialisation
C
Formation of a thrombus
D
Contraction
E
Fibrous tissue formation
Question 4
How long is the haemostatic process of wound healing?
A
<12 h
B
<24 h
C
0-4 days
D
1-14 days
E
Day 21
Question 5
What is the role of labile cells?
A
Cells that normally exist in a non-dividing state but may enter the cell cycle in response to certain stimuli, such as cell injury
B
Continuously proliferating in order to replace dead or sloughed-off cells
C
Non-dividing cells, leads to scar formation
D
Dividing cells, leading to tissue growth
E
Cells that normally exist in a dividing state but may stop dividing in response to certain stimuli, such as cell injury
Question 6
Which of the following is not true of growth factors?
A
They are proteins that stimulate survival and proliferation of particular cells, as well as migration and differentiation
B
They are produced mainly by macrophages and lymphocytes cells at the site of injury as part of the inflammatory process
C
They are only produced by the parenchymal cells or stroma in response to injury
D
They stimulate entry of the cell into the cell-cycle
E
They are produced transiently in response to an external stimulus and act by binding to cellular receptors
Question 7
Which of the following is not true of angiogenesis?
A
Angiogenesis is the incomplete restoration of architecture and function
B
Angiogenesis is the development of new blood vessels
C
Angiogenesis is promoted by VEGF
D
Angiogenesis involves sprouting of new vessels from existing ones – involves endothelial cell proliferation and migration
E
Angiogenesis is critical in the site the site of injury – development of collateral circulations at sites if ischemia occurs
Question 8
Which of the following is not true of healing by first intention?
A
Easy to suture
B
Linear scars
C
Little granulation tissue visible at incision
D
Complications are common
E
Generally uninfected
Question 9
Which of the following is not a local factor affecting tissue repair?
A
Foreign bodies
B
Type of wound
C
Circulatory status
D
Mechanical factors
E
Location of wound
Question 10
Which of the following is not a complication of tissue repair caused by inadequate formation?
A
Keloid formation
B
Dehiscence
C
Rupture
D
Evisceration
E
Ulceration
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