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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

there are 5 more comments

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zee120
zee120 posted in Friends:
you are so true u just lifted up my spirit(;
reply about 4 hours
ginnygator
Ask Joey if he will talk to William for you, to find out what is going on. Say to him "Hey, can you ask William if I went to far with him because if I did tell him that I am sorry, I did not mean to?" That is all of the advice that I can give you for now talk to me if you need anything else.
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kidwizkool123
kidwizkool123 posted in Friends:
ya but that isn't quite what I am saying I was just saying that all u really have to do is just be your self to make friends but if you aren't being yourself then they will be thinking that u r someone else and just get the wrong idea!! anyway thx for posting!!
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InternetOwl
InternetOwl posted in Friends:
Yep, being yourself is very important especially with friends. Though remember you're going to have different attitudes towards different people, and that doesn't mean you're fake. 
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You should speak to them, say " I heard you when you two had your fight  and I heard every word, I need to know what is happening between you guys". That will let them no that you are worried about them. They will probably say " That is none of your concern" or "We are discussing it". You should then say "I am part of this family to and I deserve to know" or "You two need to talk about it right here then, because I need to know what is happening right now". That is the best advice that I can give you.
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