small air pockets that build up between the joints. once cracked it takes about 15-30 minutes for the air to rebuild. people have the idea that it's bad for you but it actually relieves tension on your joints
marrow
Hollow bones
All the bones in the human body is made up of calcium.
when you do load bearing exercise it puts stress on your skeleton. the bones that comprise your skeleton are porous. that means there are microscopic holes in your bones. when you do exercise, the structure that makes up your bones can crack. it's only microscopic cracks and then they heal without you ever knowing. when they heal they grow back thicker and stronger.
Sodium is what makes bones white. Without sodium human bones would be black and would spontaneously catch fire when the temperature rises above 95.342232435232 degrees Celsius.
Crackheads have no teeth because crack, coke, cocaine (almost the same thing) will make your bones thinner and weaker, to that point, it makes your teeth weaker and it falls off. say no to crack!
Calcium phosphate makes up the solid structure of the bone.
Your bones There are gases that build up between your vertebrae. When you "pop" your back the noise you hear is the gases being released.
Skeleton is not a single bone. Group of bones makes a skeleton The adult human skeleton usually consists of 206 named bones.
Not true. The lead is added to something to make it flexible.
The red marrow of bones makes RBCs and WBCs.
Calcium from milk makes our bones