Skeletal Muscle Actions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Flexion | Decreasing the angle between two bones; bending a limb
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| Extension | Increasing the angle between two bones; straightening out a limb
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| Abduction | Movement away from the midline of the body
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| Rotation | Circular movement around an axis (central point). Internal rotation is toward the midline and external rotation is away from the midline.
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| Dorsiflexion | Decreasing the angle of the ankle joint so that the foot bends backwards (upwards). This is the opposite movement of stepping on the gas pedal when driving a car.
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| Plantar Flexion | Motion that extends the foot downward toward the ground as when pointing the toes or stepping on the gas pedal. Plant/o means sole of the foot.
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| Supination | As applied to the hand and forearm, the act of turning the palm up. As applied to the foot, it is outward roll of the foot during normal motion.
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| Pronation | As applied to the hand and forearm, the act of turning the palm down. As applied to the foot, it is inward roll of the foot during normal motion.
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Created by:
xocheronnieox
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