医学英语丨The Joints
2014/12/27 医学生

     今天我们来介绍一下关节的相关结构

     [Key Point]

    

     [Basic Knowledge]

     The jointsorarticulationsare classified according to the degree of movement they allow.

     A suture is an immovable joint held together by fibrous connective tissue[n.纤维结缔组织], as is found between the bones of the skull.

     A symphysis a slightly movable joint connected by fibrous cartilage. Examples are the joints between the bodies of the vertebrae[n.椎骨] and the joint between the pubic bones[n.耻骨].

     A freely movable joint is called a synovial joint or diarthrosis. Such joints allow for a wide range of movements. Tendons[n.肌腱] attach muscles to bones to produce movement at the joints.

     Freely moveable joints are subject to wear and tear, and they therefore have some protective features. The cavity of a diarthrotic joint contains synovial fluid [n.滑液] which cushions[v.保护，缓冲] and lubricates[v.润滑] the joint.

     This fluid is produced by the synovial membrane[n.滑膜] that lines the joint cavity. The ends of the articulating bones are cushioned and protected by cartilage[n.软骨].

     Synovial joints are stabilized and strengthened by ligaments[韧带], which connect the articulating bones. A bursa is a small sac of synovial fluid that cushions the area around a joint. Bursae are found at stress points between tendons, ligaments, and bones.

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