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8 Cards in this Set
- Front
- Back
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Describe how the four freely movable joints work.
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1. Ball and socket - permits the widest range of movement.
2. Hinge - a back-and-forth movement 3. Pivot - allows one bone to rotate around another 4. saddle - allows one bone to slide in two directions |
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Why is it harder for ligament to heal than other parts of the skeletal system?
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Because ligaments do not contain as many blood vessels.
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How does arthritis affect the functioning of the body as a whole.
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Arthritis is an inflammation of the joints which could limits a person's mobility, which could decrease the person's exercise and health.
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Why do you think the amount of cartilage decreases and the amount of bone increases as a person develops?
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An adult's need for bone is greater because of the force on the body, while cartilage is needed more in younger people where flexibility is needed the most.
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What is bone?
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It is a connective tissue.
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What is the difference in ligaments and tendons?
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Ligaments connect bones to bones while tendons connect muscle to bones.
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The energy needed for a muscle contraction is provided by _______.
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ATP
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Why are fair-skinned people more at risk of developing skin cancer than dark-skinned people?
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Fair-skinned people do not produce as much melanin and do not have as much protection from the UV rays.
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