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Does our skull protect us from any pressure?

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Does our skull protect us from any pressure?

Post Number:#1  Postby SuperKingKong® » Sun Apr 22, 2007 1:06 am

Hi guys,

do you know whether our skull does protect our brain from any change of pressure? ...  

eg, if a man is without a skull or without part of the skull (due to accident), is it dangerous to dive? will the changing of pressure affect the brain?

thanks in advance for your opinion.
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Re: Does our skull protect us from any pressure?

Post Number:#2  Postby SuperKingKong® » Mon Apr 23, 2007 3:42 am

anyone? :)
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Re: Does our skull protect us from any pressure?

Post Number:#3  Postby John F SeaDemon » Mon Apr 23, 2007 12:00 pm

The cranium can take a lot of pressure. But I'll let divedoc answer this one.
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Re: Does our skull protect us from any pressure?

Post Number:#4  Postby SuperKingKong® » Mon Apr 23, 2007 1:37 pm

thanks for replying, SD :)
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Re: Does our skull protect us from any pressure?

Post Number:#5  Postby Bones » Mon Apr 23, 2007 2:17 pm

Dunno whether this is helpful,

The skull's main function is a a vault/ protector of the brain. With regards to your Q after an accident usually if there is a fracture, the fracture would heal in about 3 months and there should be no problem in that sense.

If say that the skull was crushed (incl the brain).... I doubt it that the fella would have survived and if survive whether he could physically and mentally be normal would be the main question...
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Re: Does our skull protect us from any pressure?

Post Number:#6  Postby santadive » Mon Apr 23, 2007 8:41 pm

In normal people the brain would be filled with fluids. As you might have noticed the rest of your body doesn't really change size during a dive. This is because your body is mostly made up of fluids...  (sounds a bit like a DSD-briefing...) ;)
A person missing "part of the skull" would have to see a doctor before getting cleared for diving. -It is pretty reasonable to assume that the person would not be able to perform normal exercise and thus can not dive...
Any head-injuries (causing unconciousness) will need medical clearing before diving!
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Re: Does our skull protect us from any pressure?

Post Number:#7  Postby SuperKingKong® » Tue Apr 24, 2007 6:29 am

hi all,

thanks for replying.
well, to tell you the truth, i'm one of the survivor. On your statement, zzz, this incident happened on my when i was 17, which was not possible for the healing. If i'm still a baby, according to the doc, my skull will heal back.

in that incident, the surgeon took off part of my skull, to take out the blood clot coz by internal bleeding. well, miracle had happened, thanks to GOD, i'm still alive. but at that moment of time, medical technology was still not that advance yet, they had to cut a big hole, hence, i'm still having that hole. After about 2 years from that day, i learnt that in Singapore, they will only cut a hole of a 20cents size.

the wound, everything grown ticker, i think the "meat" or something, but not the skull :) so, not so fragile, but have to be careful as not to knock any hard object on that area.

Good thing is, i've flown here and there. Seen a normal clinical doctor before involving in diving. according to him, it's ok.

well, the reason i put up this thread, is to seek advices and opinions, probably one of you guys have a friend or have some inputs on this kind of situation.

my ring of friendship is very small, and furthermore, it's not in KL. all these years, i've been travelling here and there, made some friends here and there... and that is not a good thing. now that finally i'm settled down in KL, i have to start to build it up again. when ppl say.. ask your friend lah... i'll ask myself.. who are my friends?  :-/  so, ended up, i'll post it here...and all you guys are my "virtual" friends :P and hoping that one day, i can make more friends, as in, real friends :)

kekekee.. sounds kinda pathetic, right? well, it's skk :) that's why i like to lepak with katakpink when i'm not working :P
Last edited by Anonymous on Tue Apr 24, 2007 6:34 am, edited 1 time in total.
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Re: Does our skull protect us from any pressure?

Post Number:#8  Postby santadive » Tue Apr 24, 2007 10:31 am

Hi SKK
Happy that you did survive and are here to ask the questions... :)

The doctor that cleared you for diving -was that a doctor trained in Hyperbaric diseases? :-?

The reason i ask is, I would be concerned about the amount of possible scar-tissue in your brain and other areas of your body... (I assume your injury was a "hard-impact"-accident)
Nitrogen would release a lot slower from these scar-tissues because of the lack of bloodflow through it = higher risk of DCS...
-You have in another thread mentioned that you after your last dives felt symptoms of DCS -and although most of these sympoms by now has subsided I will urge you to get it checked out at a hyperbaric facility...
-the risk is simply too great... :(

Remember that this is most likely not the case -It is still very rare for people to get DCS, and most likely you have many dives ahead of you... -But I would like for you to do it in a safe manner and stay on this board for a long time to come...!!!

Sorry if I ruined your day :'(

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Re: Does our skull protect us from any pressure?

Post Number:#9  Postby miemosa » Tue Apr 24, 2007 10:32 am

hi SKK, thanks for sharing yr story.. i definitely wont be able to help on your skull question.. but in MUW, i think friendship wise you are blessed  ;). Although i've yet to meet in person many other MUW members, those that i've met and get to know are very warm n friendly... make room for one of our TT (teh tarik) session n you'll see that there are more than virtual friends in here... ::) :D
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Re: Does our skull protect us from any pressure?

Post Number:#10  Postby John F SeaDemon » Tue Apr 24, 2007 11:00 am

SKK, Santadive has a point about the slow release of Nitrogen bubbles and microbubbles in tissue scars. And I don't know how to assess your injury.

However, make a prior appointment to see our Divedoc when you come back in June. Let him assess and tell you if you are really fit to dive or what are your limitations.

As with other friends in this forum, I want to be able to dive with you for as long as you and I can...and hope to die peacefully of old age. ;)
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Re: Does our skull protect us from any pressure?

Post Number:#11  Postby Bones » Tue Apr 24, 2007 11:22 pm

hi all,

thanks for replying.
well, to tell you the truth, i'm one of the survivor. On your statement, zzz, this incident happened on my when i was 17, which was not possible for the healing. If i'm still a baby, according to the doc, my skull will heal back.

in that incident, the surgeon took off part of my skull, to take out the blood clot coz by internal bleeding. well, miracle had happened, thanks to GOD, i'm still alive. but at that moment of time, medical technology was still not that advance yet, they had to cut a big hole, hence, i'm still having that hole. After about 2 years from that day, i learnt that in Singapore, they will only cut a hole of a 20cents size.


Ok SKK got the whole/ hole ;D ;D picture...
What happened to you is that the big part of the vault was removed and this compromise the protective physical function.

Santadive is right, you need to be checked by a doctor trained in Hyperbaric Medicine. Majority of doctors in Malaysia  especially GPs are not trained/ have the knowledge to assess fitness in diving. It's such a small chapter in the BAsic Medical Degree in most medical schools and usually only doctors trained/worked in the Military would get exposed to such a specialised field...  And if I'm not wrong...divedoc is one of those trained/exposed...

Hope you are fit to dive... keep your finger crossed and we may even be buddies some time in the future
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Re: Does our skull protect us from any pressure?

Post Number:#12  Postby John F SeaDemon » Wed Apr 25, 2007 1:30 am

You are not wrong zzz. Divedoc is now in KL...so easier for SKK to make an appointment for a check-up.
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Re: Does our skull protect us from any pressure?

Post Number:#13  Postby SuperKingKong® » Wed Apr 25, 2007 5:39 am

thanks very much, guys :) hope to dive with u one day :)

hey santadive.... u didn't ruin my day... coz i'm those happy go lucky kinda person ... :)

and thanks everyone ..... for the advices too. previously, before i got my OW certification, i went for a body checkup at one of the clinic in Bkt Beruntung :P  ;D well, last year i was still working there :P

well, i guess he is not so into neurology or a trained doctor in Hyperbaric diseases.

after i've visited the doc in bkt beruntung, i thought to myself that ... since i've flown, as far as to UK, after that incident... it should be ok if i go down underwater...:)

yes, santadive, it was a hard impact... fell 10ft to a cement ground
the funny thing is, i could still get up and told my sister that i was ok ... although i was like "mabuk mabuk" a bit, balance impaired ... .. ngam ngam my coach arrived at pool and heard my sister screamed ... so, he ran towards me and pulled me to the hospital. at first, i was still telling him that i was ok, and no need to go to hospital.. we could continue our daily training, coz at that time, MSSM was just about 2 weeks away... hehee.. once reached, i went into coma... for about 2 weeks. after i've gained my consciousness back, i said... aiya, i still need to go training... MSSM was around the corner....  ;D

joke aside, the most important factor, not only in this situation, but in everything else, is that strong will plays a very important role in survival.

anyway, will be visiting divedoc when i'm back there :)... any contact information, SD? :)
Last edited by Anonymous on Wed Apr 25, 2007 5:44 am, edited 1 time in total.
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Re: Does our skull protect us from any pressure?

Post Number:#14  Postby John F SeaDemon » Wed Apr 25, 2007 10:45 am

Yes, SKK I'll PM you his contact later. Right now I'm in the loo dumping some nuclear wastes. ;D
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Re: Does our skull protect us from any pressure?

Post Number:#15  Postby SuperKingKong® » Wed Apr 25, 2007 10:57 am

Yes, SKK I'll PM you his contact later. Right now I'm in the loo dumping some nuclear wastes. ;D


backing chocolate cake?  :o ;D

at the same time surfing net??  :o ::) .. wondering who will want to use your laptop   8-)
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Re: Does our skull protect us from any pressure?

Post Number:#16  Postby John F SeaDemon » Wed Apr 25, 2007 11:01 am

Yes, SKK I'll PM you his contact later. Right now I'm in the loo dumping some nuclear wastes. ;D


backing chocolate cake?  :o ;D

at the same time surfing net??  :o ::) .. wondering who will want to use your laptop   8-)


That's the whole idea ;D
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Re: Does our skull protect us from any pressure?

Post Number:#17  Postby divedoc » Sun May 13, 2007 8:53 pm

Dunno whether this is helpful,

The skull's main function is a a vault/ protector of the brain. With regards to your Q after an accident usually if there is a fracture, the fracture would heal in about 3 months and there should be no problem in that sense.

If say that the skull was crushed (incl the brain).... I doubt it that the fella would have survived and if survive whether he could physically and mentally be normal would be the main question...


I would agree with zzz, the skull's main function is a vault/protector of the brain. The skull does protect us from increasing hydrostatic pressure, but to a certain depth, which we call the crush depth.

As the cranium consist of our brain matter and cerebrospinal fluids, it will not expand/shrink according to Boyle's Law, if that's what's worrying you. Nonetheless, if u mention that the skull is crushed, the protective function is jeopardised, putting u at higher risk of getting head injuries UW (not barotrauma, ok!!)

If you would like to have a full medica check-up, i would suggest u do it in our one and only center in Lumut (Institute of Underwater and Hyperbaric Medicine). Feel free to browse through the website and you will gather information as to how dive medical checkups are performed. The website is www.iuhm.net

Hope to have answered ur Q.
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Re: Does our skull protect us from any pressure?

Post Number:#18  Postby SuperKingKong® » Mon May 14, 2007 2:39 am

Dunno whether this is helpful,

The skull's main function is a a vault/ protector of the brain. With regards to your Q after an accident usually if there is a fracture, the fracture would heal in about 3 months and there should be no problem in that sense.

If say that the skull was crushed (incl the brain).... I doubt it that the fella would have survived and if survive whether he could physically and mentally be normal would be the main question...


I would agree with zzz, the skull's main function is a vault/protector of the brain. The skull does protect us from increasing hydrostatic pressure, but to a certain depth, which we call the crush depth.

As the cranium consist of our brain matter and cerebrospinal fluids, it will not expand/shrink according to Boyle's Law, if that's what's worrying you. Nonetheless, if u mention that the skull is crushed, the protective function is jeopardised, putting u at higher risk of getting head injuries UW (not barotrauma, ok!!)

If you would like to have a full medica check-up, i would suggest u do it in our one and only center in Lumut (Institute of Underwater and Hyperbaric Medicine). Feel free to browse through the website and you will gather information as to how dive medical checkups are performed. The website is www.iuhm.net

Hope to have answered ur Q.



thanks divedoc, very informative. wondering,,, what will be the cost of this checkup :P
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