round, dome-shaped bone located at the lower end of the thighbone covered in articular cartilage surrounded by a tough fibrous capsule connected to the thighbone by ligaments flexible joint for bending and straightening the leg
kneecap which has round, dome-shaped bone kneecap which has located at the lower end of the thighbone kneecap which has covered in articular cartilage kneecap which has surrounded by a tough fibrous capsule kneecap which has connected to the thighbone by ligaments kneecap which has flexible joint for bending and straightening the leg