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Muscular System Review/Study Guide
property of muscle cells that allow them to return to original shape
does NOT cause muscle contraction
cell membrane which surrounds muscle cells
energy source for muscle contraction
property of muscle in which a state of partial contraction is maintained throughout the whole muscle
dark bands in muscle fibers are made of thick filaments
inhibitor substance that keeps actin and myosin filaments seperate
muscles make up ____ percent of body weight
area of a muscle between the 2 adjacent Z lines
tendon that attaches the calf muscle to the heel bone.
neuroelectrical, chemical, & energy source interactions cause _______.
type of muscles that rotate an involved limb.
Muscle that is found in intestines, blood vessels, and urinary bladder.
muscle found directly under the skin.
_______ is involuntary, contains one nucleus, not striated, contractions push food in intestines or blood in arteries and veins, and slower contractions than skeletal muscle.
muscles that lower body parts
Where is cardiac muscle found?
Muscle that is involuntary, one nucleus, striated,and if one cell is stimulated, all are (contract together).
turning the forearm so the palm faces the ground is known as
is rapid, uncontrolled contraction of individual heart cells; can result in death.
action, shape, origin, location, number of divisions, direction of fibers
Six factors muscles are named after.
muscles that straighten the leg
One major difference b/n smooth muscle and skeletal muscle is that smooth muscle is ____ ____.
movable attachment; where the efforts of contraction are seen.
Most skeletal muscles do not insert directly to a bone, but they insert through a _____.
muscle action that turns the foot upward.
a wide, flat tendon.
muscles that bend a limb at a joint.
place where smooth muscle would be found in the body
straighten a limb at a joint.
fixed attachment of a muscle.
move limbs AWAY from the midline of the body.
muscle movement that brings the foot toward the ground.
move limbs TOWARD the midline of the body.
turning the forearm so the palm faces upward.
muscles that raise a body part.
muscles that assist prime movers.