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29 Cards in this Set

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Origin?
Attached to a bone; that remains stationery during a contraction
Insertion?
Attached to bone; Moves during a muscle contraction
Diaphysis?
The shaft region of a long bone
Epiphysis?
The rounded end region of a long bone
Epiphyseal Plate?
A line where the epiphysis becomes fused to the diaphysis
Haversian Canal
Bone canal that contains blood vessels and nerves; found in the compact bone
Osteocyte
A young, living bone cell that is found within the lucunae ; lays down new rings of bone
Osteoblast
Specialized cell that functions in formation of bone tissue
Lamella
Layers of bone ; surround Haversion canal; provide bone with strength and rigidty
Canaliculi
Hair like channels which connect lucunae to the haversion canal;deliver blood to bone cells
Ligament
Connects bone to bone
Tendon
Connects muscle to bone
Periosterm
Tough membrane outside of bone that contains blood vessels
Yellow Marrow
Fat cells for energy found in Diaphysis
Red Marrow
Found at the ends of long bone; makes blood red cells
Medullary Canal
Long cylindrical inside space of bone filled with red or yellow bone marrow
Spongy Bone
Bone with many airspaces that provides bone with support and makes it very lightweight
Compact Bone
very hard dense bone that provides bone with strength
Flexor
muscle that moves two bones closer together
Extensor
Moves same two bones farther apart
Antagonistic Muscles
Opposite of what its contracting
Sarcomere
basic contractile unit of muscle
Actin
Thin protien molecule
Myosin
Thick protien molecule
Smooth Muscle
No stripes, involuntary, found in stomach
Cardiac Muscle
Stripes; involunatry; intercalated discs; found in heart
Skeletal Muscle
Stripes;Voluntary; Attached to bones
Fast Twitch Fibers
White muscle specialized for very short powerful bursts of activities
Slow Twitch Fibers
Red Muscle contracts slowly capable of long term activity