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11.8: Keeping Bones and Joints Healthy

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
arthritis Inflammation of a joint causing pain and swelling.
calcium Element that is a component of bone; a necessary element in nerve conduction, heartbeat, muscle contraction, and many other physiological functions.
fracture Break in bone.
ligament Short band of tough connective tissue that connects bones together to form a joint.
osteoarthritis Condition in which cartilage breaks down in joints, causing stiffness and pain.
osteoporosis Disease in which bones become more fragile and likely to break.
sprains Injuries to ligaments where a joint is put through a range of motion greater than its normal range.
vitamin D Any of a group of sterols necessary for normal bone growth; found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight.

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Difficulty Level:
At Grade
Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Aug 30, 2016
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