8 Joints - Joints-Can be classified by structure and by function Classification by Structure(textbook uses this classification 1 Fibrous Bones held

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Joints -Can be classified by structure and by function
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Classification by Structure (textbook uses this classification) 1. Fibrous - Bones held together by fibrous tissue; no joint cavity Ex: sutures of the skull, fibrous ligament connecting the tibia and fibula 1. Cartilaginous - Bones held together by cartilage; no joint cavity Ex : intervertebral joints, epiphyseal plates in the long bones of children 1. Synovial - Bones separated by a joint cavity; lubricated by synovial fluid; enclosed in a fibrous joint capsule. Ex: All joints of the limbs, most joints of the body
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Classification by Function (based on the amount of movement allowed at the joint) 1. Synarthroses (Immovable Joints) Joints with little or no movement Typically held together by fibrous connective tissue or cartilage, and the bones of the joint may actually fuse over time. Skull sutures, mental symphysis, teeth in sockets, 1 st costosternal joint. 2. Amphiarthroses (Slightly moveable joints) Typically held together by fibrous connective tissue, cartilage or ligaments though not as tightly as immoveable joints. Intervertebral discs, costosternal joints, pubic symphysis 1. Diarthroses (Freely moveable) Shoulder, knee, hip, elbow, interphalangeal, tarsal, and carpal joints
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The bones involved in these joints interlock and are held together by dense fibrous connective tissue. During middle age the bones of the skull tend to completely fuse. How are sutures classified
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This note was uploaded on 02/26/2011 for the course BIO 107 taught by Professor Smith during the Spring '11 term at NE Texas CC.

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8 Joints - Joints-Can be classified by structure and by function Classification by Structure(textbook uses this classification 1 Fibrous Bones held

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