Stem Cells and Regeneration · USMLE Step 1

Which term best describes stem cells that can give rise to all cell types of the adult body (but not extra-embryonic tissues)?

  1. Totipotent
  2. Pluripotent
  3. Multipotent
  4. Unipotent
Show answer and explanation

Correct answer: Pluripotent

Pluripotent stem cells (such as embryonic stem cells) can differentiate into nearly all cell types of the body (but not extra-embryonic tissues like placenta), distinguishing them from totipotent cells.

Difficulty: Medium Question 2 of 20

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