any of several small round bones formed in a tendon where it passes over a joint
例句
The condition is an irritation of the sesamoid bones that extend to the big toe and generally heals without surgery. 沃顿籽骨发炎的情况已经蔓延到脚趾头，不过这种伤通常不需要通过手术来治疗。
Earning points in the clubhouse for his grit, Damon avoided the disabled list, working through a broken sesamoid bone in his right foot that caused lower back and leg problems. 大门以他的胆识在球队赢得地位，纵使他的右脚软骨破裂，造成下背部和腿都有问题，他仍然没有进到伤兵名单。
The "thumb" is actually a form of carpal special, scientific name is called "radial sesamoid", mainly from the role of bamboo hold. 答案补充大熊猫是一种有着独特黑白相间毛色的活泼动物。
A16：It has 5 toes in each front foot and hind foot.There is also a false thumb in its front foot,which isevolved from sesamoid bone. 回答16：大熊猫的前、后脚各有5趾，其前脚还有一个由籽骨特化成的伪拇指。
And it forced the hallux valgus and the hallux-metatarsal joint excessive back-extending.The unusual mechanic load led to the sesamoid"s cartilage softening. 结果4例均因长期穿尖头高跟鞋，产生强制性拇外翻及跖趾关节过度背伸，这种不正常的力学载荷最终导致籽骨软骨软化。
Conclusion It is fundamental in image analysis to distinguish avulsion fracture from physiological small osteoepiphyte, sesamoid bone, and aberrant accessory bone. 结论正确掌握撕脱性骨折、生理性小骨骺、籽骨及解剖变异的副骨的特点，并综合运用影像学资料是鉴别撕脱性骨折的基本要素。
