The part of the bone that is rigid and dense.

Part of the bone that manufactures red blood cell.

A place in the body where two or more bones connect.

Connects bone to bone

Strong band of tough tissue that attach muscle to bone

Muscles that are not under your conscious control. Responsible for activities such as breathing, digesting food and your heart beating.

A muscle that is attached to the bones of the skeleton by tendons and provides the force that moves the bones. Can be voluntary or involuntary.

Characteristics in common with both smooth and skeletal muscles, involuntary, does not get tired and controls heartbeats.

A muscle that is involuntary and found in walls of internal organs such as a stomach and intestines and bladder and blood vessels.