brain size - Biology Forum

last updated by

biohazard 15 years, 11 months ago

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- December 13, 2008 at 11:48 am #10601
  princejunaid
  Participant
  Hi,
  I have observed something which puzzles me.Why is it that backward or weak babies have rather big heads?
  Does it have to do anything with the brain?
  Could anyone tell me why it is so, or was it jst a coincidence?
- December 13, 2008 at 6:27 pm #87780
  biohazard
  Participant
  At least in some cases (hydrocephalus) this is because of swelling, not an actual increase in the brain size. Actually, the swelling caused by excess cerebrospinal fluid inside the cranium diminishes the brain size.
  About other causes of "big heads" for backward babies I’m not sure of. Maybe in some cases the head just looks big if the rest of the body is weak or ill-developed?
- January 10, 2009 at 9:40 am #88367
  baikuza
  Participant
  when babies has a bigger portion for head vs body size.. so that, it looks like that baby has bigger head. there’s nothing to do with the brain
- January 10, 2009 at 10:22 am #88370
  biohazard
  Participant
  I’m not sure if that’s what the original poster meant… but yeah, you’re right in what you say 🙂
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