Wound Healing

Wound Healing

University

10 Qs

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Wound Healing

Wound Healing

Assessment

Quiz

Biology

University

Practice Problem

Hard

Created by

Group 6

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What vasoactive substance produces vasoconstriction and vasodilation during tissue coagulation?

Prokinin

Histamine

Bradykinin

Serotonin

Answer explanation

Media Image

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.

Remodelling

Fibroplasia

Inflammatory

Coagulation

Answer explanation

Media Image

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.

48-72
12-24
24-48
72-96

Answer explanation

Media Image

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)   .

strength and support
cell adhesion
locomotion
expansion and contraction

Answer explanation

Media Image

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)   .

80%
60%
25%
90%

Answer explanation

Media Image

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.

FTSG

Flap

STSG

Answer explanation

Media Image

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

Media Image

Intact dermis have ​ (a)   of type I collagen and ​ (b)   of type III collagen.

80%
20%
50%
60%
40%

Answer explanation

Media Image

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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