Learn the Joints and Their motions
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each of the black spaces below before clicking
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| Joints | The functional junctions in between bone. Binds bones together. Humans have 230. Classified by type of tissues and movement
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| Fibrous Joints | Between CLOSE bone. Thin layer of connective tissue bins the bones together. Provides no movement EX: Skull
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| Cartilaginous Joints | Hyaline Cartilage binds these to bones. Allows limited movement and absorbs shock. EX: Vertebrae
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| Synovial Joints | Most Joints of the Skeleton. Free movement. Covered with hyaline cartilage and a capsule of connective tissue that binds them. CONTAINS A SYNOVIAL MEMBRANE THAT SECRETES SYNOVIAL FLUID. Located in patella and elbow. Menisci and fluid sacs called Bursa
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| BALL AND SOCKET JOINT | Globe/Egg shaped head, that articulated with a cup shaped cavity. Allows wide range of motion. EX: Shoulder and Hip
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| CONDYLOID JOINT | Oval shaped condial fits into elliptical cavities. Allows a variety of movement. EX: Metacarpals and Phalanges.
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| HINGE JOINT | Convex surface fits into concave surface of another bone. Hinged like a door. EX: Elbow and Phalanges.
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| PIVOT JOINT | Cylinder surface of one bone rotates in a ring of another bone. Allows limited movement around a central axis. EX: Radius and Ulna
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| Saddle Joint | Articulating bones have concave and convex regions. Allows a variety of movements. EX: Carpals and Metacarpals of the thumb
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| JOINT MOVEMENTS: | Occurs at synovial joints. One end of muscle attaches to the immovable end of bone, the other end attaches to movable end. When the muscle contracts it pulls together
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| flexion | bending body parts so that the angle between them decrease. (Bending the arm)
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| extension | straightening the body parts so that the angle between them increases. (Straightening the arm)
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| Dorsiflexion | movement at the ankle that brings the foot closer to the shin. (Walking on your heels)
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| Plantar Flexion | Movement at the ankle that brings the foot farther from the shin. (Pointing toes)
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| Hyperextension | extension of the parts at a joint, beyond the anatomical position. Usually results in injury. (Whiplash)
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| ABduction | moving a part away from the midline of the body. (Lifting the arm away from body).
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| ADduction | Moving a part toward the midline of the body. (returning the arm to the side of the body)
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| Rotation | moving a part around an axis. (Twisting the head from side to side)
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| Circumduction | moving a part so that its ends follows a circular path. (Moving finger in a circular motion)
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| Pronation | Turning the hand so that the palm is downward
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| Supination | turning the hand so that the palm is upward
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| Eversion | Turing the foot so that the plantar surface faces laterally
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| Inversion | Turing the foot so that the plantar surface faces medially
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| Retraction | Moving a part backward. (Pulling the head back)
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| Protraction | Moving a part forward. (Thrusting the head forward)
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| Elevation | Raising a part. (Shrugging shoulders)
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| Depression | Lowering a part. (Drooping the shoulders)
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Created by:
Davigo Soklux
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