First of all our skeletal system and bones are made of connective Tissue. By name we can get some feeling of them. and secondly our bones are connected via joints. these joints are of varied types. Sinyovial and Cartillaginous joints allows to move our muscles while bending or twisting to some extent.
Between two bones, there is a ligament, which is why you can bend your knee without the bones scraping against each other.
what two bones are right next to each other
A ligament is a tough fibrous band of tissue connecting the articular extremities of bones or supporting an organ in place.the stuff that connects your muscles
They bend the knees
Tendons connect muscle to muscle and also muscle to bone.
They are warm blooded.
Bones are all connected to one another. They are not connected bone to bone, though. The bones are connected to each other throughout the body by joints.
what keeps our bones from scratching and bumping agaist each other when we move
The big toe proper has only 2 bones. Every other toe has 3 bones.The big toe on each foot has two bones called phalanges: a distal phalanx at the end and a proximal phalanx that connects to a metatarsal bone in the middle foot. All other toes have 3 phalanges, with a medial phalanx between the other two toe bones.
Collagen makes your bones flexible so they bend just enough so they dont brake. The minerals provide the calcium in your bones.
The joints.
The 'click' sound that people hear when with any joint (a point of the body which two bones meet) movement is cause by your bones pressing against each other. Why does this happy? In between each joint there is a fluid that prevents the bones from against one another. Sometimes your bones meet anyway. However, it is mostly likely that the fluid has decreased in that area is it is a frequent event.