What is it that protects our brain from trauma?

Question

give me sources please.

internal trauma.....

Answer 1

Hmmm - as previously noted

arachnoid - one of the three membranes that protects the brain and spinal cord. The space between the arachnoid and the pia (another membrane) is filled with cerebrospinal fluid, protecting the brain from physical blows and providing the brain with nutrients. SITE: http://www.enchantedlearning.com/subjects/anatomy/brain/glossary/

The Fourth Ventrical:
http://biology.about.com/library/organs/brain/blfourthvent.htm
http://www.jhu.edu/hurj/issue4/research-fajobi.html


The Skull
http://www.designnews.com/article/CA151103.html


CSF:
http://www.mcponline.org/cgi/content/full/5/10/1819


As you can see there are many parts of the body that work togeher to protect the brain. The Skull is the first part which houses various membranes and fluids that keep the brain active and protected.

If the brain gets knocked about too much and pushes throuhg these membe\ranes, touches the skull - the person would be knocked unconcsiencous. Any such trauma needs to be looked at carefully as concussions could have long lasting effects when something like this happens.

Answer 2

I remember a British radio program which discussed how crash-test dummies were ineffective at modelling anything other than the physical forces involved in a crash. It discussed the fact that the brain impacts on the inside of the skull at about the same speed as the car was going at. There was talk about the cerebro-spinal-fluid as a physical means of protecting the brain from trauma. there was also discussion on the physical and mental trauma that could result - gruesome.

I hope the following links will get you started:

http://news.bbc.co.uk/1/hi/health/2345749.stm
http://www.bbc.co.uk/health/conditions/hydrocephalus1.shtml
http://en.wikipedia.org/wiki/Cerebrospinal_fluid
http://faculty.washington.edu/chudler/vent.html
http://backandneck.about.com/od/c/g/cerebrospinalfl.htm

enjoy

Answer 3

Skull cap.