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articulations
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fibrous joints
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Joints
joints of the body
| Question | Answer |
|---|---|
| articulations | functional junctions between bones |
| fibrous joints | dense connective tissue |
| syndesmosis | bones are bound by long fibers of connective tissue that form an interosseous ligament |
| suture | broad margins of adjacent bones grow together and unite by a thin layer of dense connective tissue |
| gomphosis | a joint formed by the union of a cone-shaped body process in a body socket. |
| cartilaginous joints | hyaline cartilage or fibrocartilage that connects bones |
| synchondrosis | bands of hyaline cartilage unite the bones |
| synovial joints | joints of the skeletal system that allow free movement |
| articular cartilage | resists wear and minimizes friction when it is compressed as the joint moves |
| joint capsule | two distinct layers taht holds together bones of a synovial joint |
| ligaments | bundles of strong tough collagenous fibers |
| synovial membrane | covers all of the surfaces within the joint capsule |
| synovial fluid | a clear viscuous fluid |
| menisci | disc of fibrocartilage that divides the synovial joints |
| bursae | a fluid filled sac associated with synovial joints |
| ball and socket joint | consists of a bone with an egg shpaed edd that articulates within the cup shapedcavity of another bone |
| condyloid joint | ovoid condyle of one bone |
| gliding joints | allow sliding or back and forth motion and twisting movements |
| hinge joint | convex surface of one bone that fits into a concave surface |
| pivot joint | cylndrical surface of one bone rotates within a ring formed of bone and fiburous tissue |
| saddle joint | between bones whose articulating surfaces have both concave and convex regions |
| flexion | bending parts at a joint so that the angle between them decreases |
| extension | straightening parts at a joint so that the angle between them increases |
| hyperextension | excess extension of teh parts at a joint |
| dorsiflexion | bending the foot at the ankle toward the shin |
| plantar flexion | bending the foot at the ankle toward the sole |
| abduction | moving a part away from the midline |
| adduction | moving a part toward the midline |
| rotation | moving a part around an axis |
| circumduction | moving a part so that its end follows a circular path |
| supination | turning the hand so the palm is upward |
| pronatino | turning the hand so the palm is downward or facing posteriorly |
| eversion | turning the foot so the sole faces laterally |
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