Multiple choice

In the human brain, the total number of glial cells:

  1. is significantly greater than the number of neurons

  2. is significantly lower than the neurons

  3. roughly equals the number of Schwann cell

  4. roughly equals the number of neurons

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human brain contains roughly equal numbers of glial cells and neurons (approximately 1:1 ratio), contradicting older claims of 10:1 or 50:1. This ratio varies by brain region but balances overall.