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skeleton
The inner framework made up of all the bones of the body.
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skeletal system
Protects and supports body organs and provides a framework the muscles use to support movement. Made up of bones and joints
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periosteum
A thick layer covering the outside of bones. It helps muscles and tendons to attach.
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cartilage
softer and more flexible than bone; often found where bones meet to provide cushion and lubrication. It is also in your nose and ears.
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compact bone
Hard, dense bone tissue that is beneath the outer part of a bone
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spongy bone
bone tissue with many small spaces; found just inside the layer of compact bone.
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bone marrow
A soft tissue inside the bone that produces blood cells
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joint
A place in the body where two bones come together
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ligament
attaches bone to bone
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hinge joint
Joint between bones (as at the elbow or knee) that allows motion in only one way
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pivot joint
Allows for rotation around the length of a bone, and only allows for rotation. (ex. Neck)
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ball-and-socket joint
the freest moving joint (and most easily dislocated type); found in the shoulder and hip
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gliding joint
allows one bone to slide over another; found in wrist and ankles
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synovial fluid
A small amount of liquid within a joint used as lubrication.
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arthritis
painful joints; stiffness of the joints.
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voluntary muscle
A muscle that is controlled by the brain and can be contracted or relaxed when thinking about it;
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involuntary muscle
muscle that moves automatically and cannot be controlled by the mind
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skeletal muscle
a muscle that is connected to the skeleton that moves the limbs and other parts of the body.
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cardiac muscle
Involuntary muscle tissue found only in the heart.
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smooth muscle
Involuntary muscle found inside many internal organs of the body
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tendon
Attaches muscle to bone
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cardiac muscle
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skeletal muscle
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smooth muscle
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epidermis
Outer layer of skin
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dermis
Inner layer of skin
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melanin
A pigment that gives the skin its colour
