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18 Cards in this Set
- Front
- Back
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Movements at synovial joints are grouped into which four main categories?
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1) Gliding
2) Angular movements 3) Rotation 4) Special movements |
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What is gliding?
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Simple movement in which relatively flat bone surfaces move back and forth and from side-to-side with respect to one another
NO significant alteration of the angle between the bones |
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What are angular movements?
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Movements which create an increase or decrease in the angle between the articulating bones
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What is rotation?
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Movement in which a bone revolves around its own longitudinal axis
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What are special movements?
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Unique movements that occur only at certain joints (e.g. inversion/eversion of the feet)
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What are the 6 major types of angular movement?
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1) Flexion
2) Extension 3) Lateral flexion 4) Abduction 5) Adduction 6) Circumduction |
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What is flexion?
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Movement in which there is a decrease in the angle between articulating bones
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What is extension?
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Movement in which there is an increase in the angle between articulating bones
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Along which plane do flexion/extension usually occur?
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Sagittal plane
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What is the sagittal plane?
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Vertical plane which passes from ventral (front) to dorsal (rear) dividing the body into right and left halves
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What is lateral flexion?
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Flexion along the frontal plane involving the intervetebral joints
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What is the frontal plane?
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The vertical plane that divides the body into ventral and dorsal (belly and back) sections
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What is another name for the frontal plane?
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Coronal plane
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What is abduction?
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Movement of a bone away from the midline
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What is adduction?
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Movement of a bone toward the midline
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Along which plane do abduction/adduction occur?
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Frontal (coronal) plane
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What is circumduction?
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Movement of the distal end of a body part in a circle
Not an isolated movement by itself but rather a continuous sequence of flexion, abduction, extension, and adduction |
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Give two examples of circumduction.
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Moving the humerus in a circle at the shoulder joint
Moving the hand in a circle at the wrist joint |
