Patella

（重定向自Knee Cap）

In this X-ray, an anatomical variation of the patella can be seen – the bipartate patella, in which the patella is split into two parts.

The patella (/pəˈtɛlə/), also known as the kneecap or kneepan, is a thick, circular-triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint. The patella is found in many tetrapods, such as mice, cats, and birds, but not in whales or most reptiles and amphibians such as snakes or frogs.

单词	Knee Cap
释义	Knee Cap 原声例句连线杂志 Oh yeah, fallen in, broke my knee cap, all kinds of, yeah. 哦，是的，摔倒了，摔断了我的膝盖骨，各种各样的，是的。英语百科 Patella （重定向自Knee Cap） The patella (/pəˈtɛlə/), also known as the kneecap or kneepan, is a thick, circular-triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint. The patella is found in many tetrapods, such as mice, cats, and birds, but not in whales or most reptiles and amphibians such as snakes or frogs.
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