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Tissue Regeneration and Repair Quiz

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Questions and Answers

What is the main difference between regeneration and repair?

Regeneration replaces lost or damaged tissue with similar tissue, while repair replaces it with granulation tissue and scar tissue. (correct)

Regeneration is more helpful for wound healing than repair.

Regeneration is a slower process than repair.

Regeneration requires more inflammation than repair.

What is the helpful and not-so-helpful route of wound healing?

Healing through fibrosis/scar formation is not helpful, while healing through granulation tissue formation is helpful. (correct)

Both healing through fibrosis/scar formation and granulation tissue formation are helpful.

Healing through fibrosis/scar formation and granulation tissue formation are equally not helpful.

Healing through fibrosis/scar formation is helpful, while healing through granulation tissue formation is not helpful.

What is the main difference between primary and secondary intention wound healing?

In primary intention, the wound is more extensive and the wound edges are widely separated, while in secondary intention, the wound is narrow and the edges are in close apposition.

In primary intention, granulation tissue covers the wound and the wound area is reduced by contraction, while in secondary intention, re-epithelialization dominates the healing process.

In primary intention, re-epithelialization dominates the healing process, while in secondary intention, granulation tissue covers the wound and the wound area is reduced by contraction. (correct)

There is no significant difference between primary and secondary intention wound healing.

What is the main purpose of the hemostasis stage in the healing of a small skin wound?

To form a platelet plug and fibrin clot to stop bleeding. Signup and view all the answers

What is the time period for the granulation tissue formation stage in the healing of a small skin wound?

2-5 days Signup and view all the answers

What is the primary function of macrophages during the wound healing process?

All of the above Signup and view all the answers

What is the primary difference between keloid and hypertrophic scarring?

Keloids spread beyond the margins of the original wound, while hypertrophic scars do not. Signup and view all the answers

What is the primary mechanism of re-epithelialization in a small skin wound?

Proliferation of basal epithelial cells adjacent to the wound and their migration across the wound bed under the fibrin scab. Signup and view all the answers

What is the primary function of the extracellular matrix during the maturation stage of connective tissue healing?

Decreased cellularity and vascularity Signup and view all the answers

Which of the following is not a traditional function of macrophages during wound healing?

Stimulation of angiogenesis Signup and view all the answers