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Bones & Muscles Vocabulary
Skeletal & Muscular System vocabulary
23
Science
11/28/2005

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Term
Bone marrow
Definition
soft tissue in the center of many bones
Term
Cardiac muscle
Definition
specialized, involuntary muscle found only in the heart
Term
Cartilage
Definition
soft, flexible material found in joints and other parts of the skeletal system
Term
Compact bone
Definition
thick, hard outer layer of bone
Term
Joints
Definition
places in the skeleton where two or more bones meet or are joined together
Term
Ligaments
Definition
strong bands of tissue that hold bones together at joints
Term
Skeletal muscles
Definition
muscles that move bones
Term
Smooth muscle
Definition
involuntary muscles that move many of your internal organs
Term
Spongy bone
Definition
light but strong type of bone found inside the ends of bones; not compact; with many openings
Term
Tendons
Definition
strong elastic bands of tissue that connect muscles to bones
Term
Periosteum
Definition
tough, tight-fitting membrane that covers the surface of bones
Term
Ball and socket joint
Definition
In this type of joint a bone with a rounded end that fits into a cuplike cavity on another bone
Term
Pivot joint
Definition
In this joint one bone rotates in a ring of another bone that does not move
Term
Hinge joint
Definition
a joint that has a back and forth movement like hinges on a door
Term
Gliding joint
Definition
a type of joint where one part of a bone slides over another bone
Term
Immovable joint
Definition
This type of joint allows little or no movement
Term
Moveable joint
Definition
These joints allow the body to make a wide range of movements
Term
Muscle
Definition
an organ that can relax and contract to allow movement
Term
Voluntary muscle
Definition
Muscles that you are able to control
Term
Involuntary muscles
Definition
Muscles you cannot consciously control
Term
Epidermis
Definition
The surface layer of your skin
Term
Melanin
Definition
A pigment that gives your skin color
Term
Dermis
Definition
The layer of tissue under the epidermis; contains many blood vessels, nerves, and oil and sweat glands