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Assertion (A): The knee joint belongs to the category of hinge joints.
Reason (R): The femur, patella, and fibula are associated with the knee joint.
Both (A) and (R) are true, and (R) correctly explains (A).
Both (A) and (R) are true, but (R) does not correctly explain (A).
(A) is true, but (R) is false.
Both (A) and (R) are false.
Answers (1)
Assertion (A) correctly states that the knee joint belongs to the category of hinge joints. Hinge joints are characterized by their ability to allow movement primarily in one direction. The knee joint specifically allows flexion and extension movements similar to the opening and closing of a door.
However, the reason (R) stating that the femur, patella, and fibula are associated with the knee joint is incorrect. While the femur is indeed connected to the knee joint, the patella (kneecap) and fibula are not directly involved in the structure or functioning of the knee joint. The patella is a sesamoid bone that lies in front of the knee joint and acts as a protector and improves mechanical advantage for knee extension. The fibula is a bone located in the lower leg but does not directly participate in the knee joint itself.
Therefore, option 3 accurately represents the relationship stating (A) is true, but (R) is false. Hence, the correct answer is option 3.
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