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Unit 3 Part A
Bone, Muscle, Skin
| Term | Definition |
|---|---|
| Voluntary Muscle | Muscle controlled by choice (skeletal muscle). |
| Involuntary Muscle | Muscles that are not under your control. Regulated by the brain stem (cardiac and smooth muscle). |
| Tendon | Connective tissue that connects muscle to bone. |
| Ligament | Connective tissue that holds bones together across joints. |
| Bone Marrow | Tissue inside bones. Red marrow produces blood cells, yellow marrow stores fat. |
| Cartilage | Flexible tissue that is smooth and cushions joints. Found at the end of bones in joints, the ears and nose. |
| Sprain | Damage to a ligament from being stretched or torn. |
| Dermis | Thick lower layer of skin that contains blood vessels, nerves and glands. |
| Epidermis | Thin upper layer of skin protects the body from infection. |
| Compact bone | Rigid outer layer of bone provides strong support. |
| Spongy bone | Layer of bone that contains many spaces to hold bone marrow. |
| Ball and Socket joint | Allow bones to rotate in a circle (shoulder and hip). |
| Hinge joint | Allow bones to move back and forth like door hinges (knee and elbow). |
| Gliding joint | Allow bones to slide across each other in many directions (wrists and ankles). |
| Pivot joint | Allow bones to twist in place (neck and radius) |
| Osteoporosis | Disease that causes bone tissue to thin and become weak and break easily. |
| Arthritis | Disease that causes pain in joints from damage to cartilage. |
| Cardiac muscle | Muscle that makes up the heart. This muscle does not get tired like skeletal muscles. |
| Smooth muscle | Surrounds internal organs and blood vessels. Moves food through the digestive system and blood through arteries. |
| Skeletal muscle | Muscle attached to bones; work in pairs to move bone by contracting and relaxing. One muscle straightens the other bends. |
| Strain | Damage to muscle when it is stretched or torn. |
Created by:
johnsona
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