bone tissue
Bone Tissue
There are two kinds of bone tissue:
compact bone and spongy bone. Compact bone
tissue is rock-hard because it's made of the same
minerals found in rocks calcium phosphates and
magnesium Spongy bone tissue contains
collagen, which is strong yet flexible material
Collagen makes bones strong by allowing them
to bend slightly without breaking. A network of
in and out of your bones.