Question

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

	Characteristics	Examples
(A)	Lymph filled between two bones, limited movement	Gliding joint between carpals
(B)	Fluid cartilage between two bones, limited movements	Knee joints
(C)	Fluid filled between two joints provides cushion	Skull bones
(D)	Fluid filled synovial cavity between two bones	Joint between atlas and axis

• A. A
• B. B
• C. C
• D. D

Answer 1

The correct option is D D

Synovial joints are characterised by the presence of a fluid filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements. Ball and socket joint (between humerus and pectoral girdle), hinge joint (knee joint), pivot joint (between atlas and axis), gliding joint (between the carpals) and saddle joint (between carpal and metacarpal of thumb) are some examples.