
Wound Healing
Authored by Group 6
Biology
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What vasoactive substance produces vasoconstriction and vasodilation during tissue coagulation?
Prokinin
Histamine
Bradykinin
Serotonin
Answer explanation
Serotonin is released by platelets in blood to help heal wounds. It also causes the tiniest blood vessels, arterioles, to narrow, which slows blood flow and helps clots to form.
2.
REORDER QUESTION
30 sec • 1 pt
According to Bailey's model, rearrange phases of tissue repair.
Coagulation
Remodelling
Inflammatory
Fibroplasia
Answer explanation
Wound healing is classically divided into 4 stages: (A) coagulation, (B) inflammation, (C) fibroplasia, and (D) remodeling. Each stage is characterized by key molecular and cellular events and is coordinated by a host of secreted factors that are recognized and released by the cells of the wounding response.
3.
DRAG AND DROP QUESTION
1 min • 1 pt
During fibroplasia phase, it will take (a) hours for migration of fibroblasts take place into the wound.
Answer explanation
Fibroblasts begin entering the wound site two to five days after wounding as the inflammatory phase is ending, and their numbers peak at one to two weeks post-wounding.
4.
DROPDOWN QUESTION
1 min • 1 pt
Collagen serve as (a) .
Answer explanation
Collagen is protein molecules made up of amino acids. It provides structural support to the extracellular space of connective tissues.
5.
DROPDOWN QUESTION
1 min • 1 pt
Maximum strength of a scar versus the unwounded skin is (a) .
Answer explanation
A healed wound only reaches approximately 80% of the tensile strength of unwounded skin.
6.
REORDER QUESTION
1 min • 1 pt
Reorder the rate level of contraction from most to least.
Flap
FTSG
STSG
Answer explanation
A split-thickness graft (STSG) is composed of epidermis and a variable amount of dermis, a full-thickness graft (FTSG) includes all the layers of the skin.
7.
DRAG AND DROP QUESTION
1 min • 1 pt
Intact dermis have (a) of type I collagen and (b) of type III collagen.
Answer explanation
In the skin, collagen type I constitutes 80–85% of the dermal ECM, while collagen type III constitutes about 11-20%.
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