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bones, muscles, skin

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