Describe the structure and function of the hinge joint in the knee. (3 marks)
--- 6 WORK AREA LINES (style=lined) ---
Show Answers Only
Sample Answer
Structure:
- The knee is a hinge joint where the femur articulates with the tibia.
- The patella sits anteriorly, protecting the joint.
- Strong ligaments provide stability while articular cartilage covers bone surfaces.
Function:
- Allows flexion and extension in one plane, enabling walking, running and squatting movements.
- The hinge design provides stability during weight-bearing while restricting lateral movement.
- Synovial fluid lubricates the joint for smooth motion.
Show Worked Solution
Sample Answer
Structure:
- The knee is a hinge joint where the femur articulates with the tibia.
- The patella sits anteriorly, protecting the joint.
- Strong ligaments provide stability while articular cartilage covers bone surfaces.
Function:
- Allows flexion and extension in one plane, enabling walking, running and squatting movements.
- The hinge design provides stability during weight-bearing while restricting lateral movement.
- Synovial fluid lubricates the joint for smooth motion.