The organ system that consists of bones, their associated cartilages, ligaments and joints. Provides protection, movement, produces red blood cells, and stores minerals.

The part of the bone that is rigid and dense.

Makes up the interior of the bone, soft part of the bone, and provides most of the strength and support.

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

A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together.

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.

Muscles that are under your control. Smiling, turning a page in a book and getting out of your chair are some examples.

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

Cells and tissues that allow movement of an organ or body part. Can only contract, not extend.

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