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Dem Bones

The human skull is composed of 30 different bones.
Human Skull
Dem Bones - Reviewed by Kidzworld on Dec 27, 2006
( Rating: 1 Star Rating)

You probably think of death when you think about skeletons. Maybe you think that skeletons are like scaffolding, holding everything in the body in place. The truth is bones are a lot more. They're alive.

You probably think of death when you think about skeletons. Or maybe you think that skeletons are like scaffolding, holding everything in the body in place, and the bones are like metal bars. True but bones are also very much alive. They aren't just some solid material like metal, they are alive with cells. Human bones have three layers. The smooth, hard outer layer is cortical bone. Beneath this layer are many layers of cancellous bone. Cancellous bone looks kinda like a sponge. Although not quite as hard as cortical bone, it's still pretty strong. The third and innermost layer is the bone marrow. Bone marrow is like a thick jelly, and its job is to produce blood cells. So, as you can see, bones aren't only alive, they're responsible for keeping you alive as much as the heart or the brain!

What Do Bones Do?

1Bones make blood cells.

1Bones are the framework for your body.

How Many Bones?

Humans are born with 300 bones, but adults only have 206 bones. So what gives? Some of the 300 original bones in a baby are made of regular bone and some are made of a material called cartilage. Cartilage is soft and flexible to start, but over the years the cartilage grows and slowly hardens into bone. Also, some bones fuse together. All of this is part of the normal growth process.

Some time between the ages of 17 and 21, this growth process ends and your bones are as big as they're going to get. And like magic, you end up with 94 fewer bones than you started with.

Bits of Bones

1More than half of the body's 206 bones are in the hands and feet.

1The skull is composed of 30 different bones.

1The smallest bone in the body is the stirrup bone inside the eardrum. It is less an inch long.

1The largest bone in the body is the femur which is the leg bone that runs from the hip to the top of the kneecap (patella.)

1Everyone's heard of the funny bone, but did you know that humerus is the real name of the long bone that runs from your elbow to your shoulder.

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Comments

Shadeleaf

Shadeleaf wrote:

The Skull of Truth is what I think about when I hear "Skull" XD
commented: Sat Mar 01, 2014

When 2 worlds collide
spraines
commented: Wed May 01, 2013

jeniya1234

jeniya1234 wrote:

hey yall
commented: Tue Dec 13, 2011

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GottaLoveDance
GottaLoveDance posted in Friends:
"sugarpetals" wrote: "-_-NowYouSeeMeD" wrote: I know a lot of u BELIBERS out there might not like this post..but..still...I'm gonna continue!!!!  JUSTIN BIBER is REALLY TALENTED....I KNOW...I DON'T DENIE THAT AT ALL...but personally as a person I HATE HIM!!  I mean he's horrible....he doesn't care about anyone's feelings he clearly proved that by breaking SELENA'S heart in to a thousand pieces & by almost being kicked out of a country!!!:c (not just any..USA).He also did many other kinds of things which are...heheheh....heheh....better off not mentioning!!!:D  I know I'll never be able to reach where he did at the age of 13 but if fame leads to this...then...I rather stay invisible!!!:3   I KNOW HATE IS A STRONG WORD BUT IT CAN'T BE HELPED WHEN IT COMES TO BIBER :'c CAN ANYONE GIVE ME SOME  GOOD REASONS FOR WHICH BIEBER SHOULDN'T BE HATED?!?!:( AT LEAST ...MAYBE THEN I WILL BE ABLE TO AGREE WITH MY FRIEND!!!!:c I really don't wanna change her love for Biber or anything....I just wanna see...even if for once....those things that she and all of u Justin Biber fans  see in him!!!:)   i am not a belieber but this is no way to talk about Justin. maybe he has his flaws but it is not for us to judge. u want reasons why people like him right then here are they: 1.he can sing 2.they like his music 3.he is cute if u hate him then its your problem.......u don't need to like him just don't hate him because he is human, would u like someone to hate you because of the way you live and choose to be? yes i agree he did allot of horrible things, but what right do you have to hate him? and as far as your friend is concerned....u shouldn't feel bad because she sees something you don't see in him and that has nothing to do with you. I agree with sugarpetals I'm sorry to say but she is right.
reply about 4 hours
BookwormKat
My 2 older brothers & I live with my Mom, Step-Dad, & "their kids". They get out of doing chores, coming home at curfew, and can all but do anything & get away with all of it!!!!!! :e My Mom doesn't like it much but won't do anything about it. HELP!!!!!!!  :bigfrown
reply about 10 hours
daredog
daredog posted in Family Issues:
Thanks for the support!! :D :D :D :D :D :D :D :D
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daredog
daredog posted in Family Issues:
Thanks! :D :D :D :D :D :D :D :D it's good to know you don't mind! I think I might have lost a friend though... I asked Peter444 and he said he doesn't support gays... I hope he knew what I meant..... :) anyway thanks for the support! :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D
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Boysrock50
It's not wrong, it's not right, it's up to an individual tbh. If you're gay, and others have a problem, then it's them that need to change, not you. Don't give in to peer pressure, do what feels right for you
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