quán(英语:zygomatic arch)是合弓纲脊椎动物面部两侧的一种拱桥骨骼特征,在外耳道前方向前延伸到面部侧前。颞弓由颧骨的颞突和颞骨的颧突联合构成,与颧骨和颞骨主体之间形成的空隙就是颞颥孔颞肌穿过其中。颧弓的弓度决定了面部的宽度,弓度越大越向外侧突出,面部越宽。颧弓的弓度因种族差异而明显不同,东方民族颧弓弓度较大,而西方阿利安人种则较小。

参考资料

Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.