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Muscles for Locomotion
muscles
9
Biology
9th Grade
05/04/2009

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Term
smooth muscle
Definition
type of tissue, found in the walls of internal organs and blood vessles
Term
cardiac muscle
Definition
makes up the heart. The fibers are interconnected and form a network that helps the heart and is adapted to generate and conduct electrical impulses for rhythmic contraction
Term
skeletal muscle
Definition
type that is attached to and moves bones. Majority of muscles in the body are skeletal.
Term
voluntary muscles
Definition
contracts under conscious control
Term
myofibris
Definition
composed of even smaller protein filaments that can be either thick of thin
Term
myosin
Definition
thicker filaments
Term
actin
Definition
thinner filaments
Term
sarcomeres
Definition
sections of myofibril. Functional units of muscle
Term
sliding filament theory
Definition
states that when signaled, the actin filaments, within each sarcomere slide toward one another, shortening the sarcomeres in a fiber causing the muslce to contract
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