Patella

（重定向自Patela）

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	Patela
释义	Patela 英语百科 Patella （重定向自Patela） 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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