The characteristics and an example of a synovial joint in humans is:
Correct answer: C. Characteristics - Fluid filled synovial cavity between two bones, Examples - Joint between atlas and axis
- A. Chracteristics - Fluid cartilage between two bones, limited movements, Examples - Knee joint
- B. Characteristics - Fluid filled between two joints, provides cushion, Examples - Skull bones
- C. Characteristics - Fluid filled synovial cavity between two bones, Examples - Joint between atlas and axis
- D. Characteristics - Lymph filled between two bones, limited movement, Examples - Gliding joint between carpals
Explanation
All articulations between bones that help in a certain kind of movement, are placed at a distance from each other to prevent friction between them during movement. This space between the two bones is filled with synovial fluid that also helps reduce friction. For example the ball and socket joint of the pelvic girdle, the pivotal joint between the atlas and the axis.So, the correct answer is 'Characteristics - Fluid filled synovial cavity between two bones, Examples - Joint between atlas and axis'.A.Knee joint is one of the examples of synovial joint but it allows movement in various directions.B. This is an example of fibrous joint.D.This is an example of synovial joint but lymph is not filled between two bones rather it contains synovial fluid.FTB page# 43STB page # 39
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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