NEET 2013 Biology question

The characteristics and an example of a synovial joint in humans is : Characteristics; Examples

(1)Fluid cartilage between two bones, limited movements; Knee joint
(2)Fluid filled between two joints, provides cushion; Skull bones
(3)Fluid filled synovial cavity between two bones; Joint between atlas and axisCorrect
(4)Lymph filled between two bones, limited movement; Gliding joint between carpals

Answer: (3)

Solution

A synovial joint has a fluid-filled synovial cavity between the articulating bones, which lubricates the joint and allows considerable movement. The joint between the atlas and axis (pivot joint) is a synovial joint, so option (3) gives both a correct characteristic and a correct example. (1) is wrong: there is no

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Question ID VK-091448