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17 Cards in this Set
- Front
- Back
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Define synarthroses:
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The sutures in the skull join bone to bone and are not moveable (ie: skull)
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Define diarthrosis:
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Joints move freely (ie: knee joint, joints in fingers, hip joint)
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Define amphiarthrosis:
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Slightly moveable joints (ie: ribs)
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What are the components of the joint?
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Contains bone, cartilage, synovial membrane & synovial fluid. Surrounded by muscle, tendons & ligaments
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Components of a moveable joint?
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1. Articular cartilage
2. Synovial membrane 3. Ligaments 4. Synovial fluid |
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What is Articular cartilage?
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Type of connective tissue that covers the bone surface and works to reduce friction
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What is Synovial membrane?
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Tissue that lines the joint & seals it into a joint capsule. Secretes synovial fluid (clear & sticky fluid) around joint to lubricate it
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What are ligaments?
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Strong elastic bands of connective tissue that surround the joint to give support & limit joint's movements
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What are synovial joints?
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Diarthroses joints where the ends of the opposing bones are covered w/hyaline cartilage, articlular cartilage & separated by joint cavity
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4 Components of Diarthroses
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1. Enclosed in a dense fibrous joint capsule
2. Outer layer consists of ligaments 3. Inner layer is synovial membrane 4. Capable of moving freely |
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What joints in the hand are most commonly involved in RA?
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Proximal interphalangeal (PIP) & Metacarpophalangeal (MCP) JOINTS
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After the MCP & PIP joints are affected, what other
joints are affected? |
wrists, knees, elbows, ankles, hip & shoulders
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What is the major site of involvement in almost all patients with RA?
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Hands
NOTE: DIP joints are most always spared |
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Early RA in the hans is characterized by _____ and late involvment consists of both _____ & _____.
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swelling; swelling & deformity
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RA complications in the wrist include:
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1. Thickening of tissue compresses nerve to thumb
2. Chronic inflammation may lead to separation of the joint |
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3 characteristics of RA in the feet.
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1. Second only to hand involvement
2. Involves the MTP joints 3. Joint subluxation is common |
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2 characteristics of RA in large joints (knees, ankles, elbows, hips & shoulders)
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1. Usually occurs later in the course of the disease
2. Entire joint surface is involved |
