Anatomy & Physiology › Section D · The tissue level › Topic D.5
Tissue injury and aging
A twisted ankle swells, a cut closes and leaves a faint line, and skin thins over the decades. These everyday changes follow rules set by the tissues themselves, and the same rules explain why some injuries heal perfectly and others leave permanent scars.
In this topic
- How cells die, and why it matters
- The cardinal signs of inflammation
- The chemistry of inflammation
- Worked example: reading a sprained ankle
- Repair: from clot to scar
- Regeneration or fibrosis
- Worked example: predicting the outcome
- How tissues age
- Tumors and the naming of cancers
- Common mistakes to avoid
- Key takeaways
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