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bones, muscles, skin
| Question | Answer |
|---|---|
| skeletal system | Provides shape and support, enables you to move, protects your organs, produces blood cells,and stores certain materials until your body needs them. |
| vertebrae | 26 small bones down your back. |
| marrow | The spaces in bones that contain a soft connective tissue. |
| cartilage | a connective tissue that is more flexible than bone and that gives support to some parts of the body |
| joint | a place in the body where two bones come together |
| moveable joints | Movable joints allow the body to make a wide range of movements |
| immovable joints | some joints in the body connect bones in a way that allow little to no movement |
| ball and socket joint | allows the greatest range in motion. |
| pivot joint | allows one bone to rotate around another. |
| hinge joint | allows extensive forward or backword motion. |
| gliding joint | allows one bone to slide over another. |
| Fracture | a break in the bone, can occur when you fall so that all of your weightis placed on only a few bones. |
| sprain | occurs when ligaments are stretched too far and tear in places. |
| dislocation | occurs when a bone comes out of its joint. |
| X-rays | a form of energy that travels in waves. |
| x-ray fact | because most x-rays pass through the skin and other body tissues, the x-rays strike the photographic film beneath the area. |
| MRI | a method for taking clear images of both of the bones and soft tissues of the body. |
| Preventing skeletal system injuries | Simple preventive measures include warming up before exercises, wearing protective gear, and exercising in safe places. |
| involuntary muscles | not under your conscious control. |
| voluntary muscles | muscles that are under your control. |
| muscle tissue | three kinds of tissue: skeletal, smooth, and cardiac. |
| skeletal muscles | a muscle that is attached to the bones of the skeleton. |
| tendon | a strong connective tissue that attaches muscle to bone. |
| smooth muscles | involuntary. They work automatically to control many types of movements. |
| cardiac muscle | has characteristics in common with both smooth and skeletal muscles. |
| muscles at work | because muscle cells can only contract, not extend, skeletal muscles must work in pairs. |
| epidermis | the outermost layer of the skin. |
| melanin | a pigment, or colored substance, that gives skin its color. |
| dermis | the lower layer of the skin. |
| pores | openings in your skin. |
| follicles | structures within the dermis. |
| skin care | eat properly, drink enough water, limit your exposure to the sun, and keep your skin clear and dry. |
| cancer | a disease in which some body cells divide uncontrollably. |
Created by:
chrisevslee
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