Human Biology - Chapter 1, section 2

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skeleton

The inner framework made up of all the bones of the body.

vertebrae

The 26 small bones that make up the backbone.

joint

A place in the body where two bones come together.

ligament

Strong connective tissue that holds bones together in movable joints.

cartilage

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

compact bone

Hard, dense bone tissue that is beneath the outer membrane of a bone.

spongy bone

Layer of bone tissue having many small spaces and found just inside the layer of compact bone.

marrow

The soft connective tissue that fills the internal spaces in bone.

osteoporosis

A condition in which the body's bones become weak and break easily.

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