Tissue Repair After Injury
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Objective
I can describe and explain the process of tissue repair after an injury.
Part 1 of 4
Warm-up video
TED-Ed · 5:28Vetted channel
We don't generate video — this one is by TED-Ed on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
When salamanders lose a limb, skin cells quickly move across the wound to form a new layer called the wound epidermis.
- 2
The process of dedifferentiation reverts cells from fully developed limb tissues back into earlier, less specialized progenitor cells.
- 3
The blastema, made of recycled cells, is a structure that grows new cells and organizes them into muscle, bone, skin, and nerve tissue to form a functional limb.
Part 3 of 4
Practice
7 questions
What is the first thing that happens when a salamander loses a limb?
What is the wound epidermis, and what is its function in tissue repair?
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe the steps of tissue repair in salamanders after losing a limb, including the role of the wound epidermis and the blastema.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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