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208a
Joints
Question | Answer |
---|---|
Refers to a joint that does not move. EX sutures | Synarthrosis |
Refers to a joint has very limited motion. The articular surfaces that form these joints are covered by fibrous cartilage or cushioned by disk of fibrous cartilage. EX. spinal vertebrae and sacroiliac joints. | Amphiarthrosis |
Refers to a joint that can move freely. Joints are shaped together to accomplish the required movement, and their articular surfaces are covered by articular cartilage. EX. shoulder, elbow, hip, knee | Diarthrosis |
Ability to move in a circle. | Circumduction |
Ability to move back and forth in one plane, to bend, hindge joints | Angular motion |
Ability to turn on an axis. Ex. elbow joint | Rotation |
Occurs when one bone slides over another. EX. kneecap | Gliding motion |
Movement of an arm or leg away from the center part of the body. | Abduct/abduction |
Movement of an arm or leg toward the central part of the body. | Adduct/Adduction |
Turning outward, typically used to describe ankle motion. | Evert/eversion |
Straightening of a hinge joint; backward bending of the spine | Extend/extension |
Bending of a hinge joint, decreasing the angle between the bones that make up the joint | Flex/flexion |
Turning inward, typically used to describe ankle motion, | Invert/inversion |
Turning of the arm so that the palm of the hand is down. | Pronate/pronation |
Turning of the arm so that the palm of the hand is up. | Supinate/supination |