Multiple choice

The power of regeneration is the lowest in

  1. liver cells

  2. brain cells

  3. muscle cells

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neurons (brain cells) have extremely limited regenerative capacity in adult mammals because they are post-mitotic cells that have exited the cell cycle. Once damaged, neurons rarely divide or replace themselves, which is why brain and spinal cord injuries are often permanent. In contrast, liver cells (hepatocytes) can regenerate extensively even after significant damage, muscle cells have satellite cells for repair, and some other cell types can divide throughout life.

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