The more complete fractures in a single bone, the more complicated mending the fractures become. It may require an operation, needing screws and metal fixtures, to fix a badly fractured bone.
The pelvis is all ONE bone, so you can't really break both your left and your right. But a bad fall can cause you to break your pelvis, and if you do it in two places, you can have one break to the right and one to the left. A more common way of breaking your pelvis would be through a car accident.
I have broken my toe in two places.
So what?
sure, if you fall wrong you will break it
1.bone marrow 2.lungs
CPR doesn't have to break any bones.But heart compressions have to be done with some force, and might crack a rib or two.
There are two types of bone break where the bone is partially broken. One is called a simple fracture (also called a "greenstick fracture") the other is a hairline fracture.
Something around 0.01%-0.1% chance.
There are one or two bad things. Like if you try to put a nail into it and some wood, it can break.
I would imagine you are talking about breaking down and building up of bone. Osteoclasts, and osteoblasts. Two types of cells that are constantly breaking down and rebuilding bone. Osteoclasts break down the bone acidically. While osteoblasts rebuild bone, by secreting osteoid, that becomes mineralized.
bone marrow, liver
you have two fit pieces in all the places