Muscles Movements and Terms

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Agonist

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18 Terms
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Agonist

the prime mover, or the muscle that does the most work

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Antagonist

a muscle that relaxes while another contracts, or does the opposite motion

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Fixator

holds the body part in place while the action takes place

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Synergist

the helper muscle, assists in making the motion happen

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Peristalsis

a wave like motion by smooth muscle to advance substances

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Abduction

movement away from midline

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Adduction

moving of a body part toward the midline, central axis of the body

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Flexion

act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased

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Extension

increasing a joint angle

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Hyperextension

extension past normal extension, or past anatomical position

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Plantarflexion

specific to ankle motion, pointing the toes

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Dorsiflexion

specific to ankle motion, pulling the toes towards the shin

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Supination

rotation of the hands and forearms so that the palms face upward

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Pronation

rotation of the hands and forearms so that the palms face downward

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Rotation

movement around an axis

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Circumduction

a circular movement of a limb or eye; cone shaped motion

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Origin

the most proximal end of the muscle, the non moving end, or where the muscle starts

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Insertion

the distal end of a muscle, the moving end, or where the muscle goes to

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