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桡骨

File:Radius_-_anterior_view2.png · Wikimedia Commons · See Wikimedia Commons

EntityQ178492· pop 59· linked from 866 articles

Also known as radial bone, radius bone

one of the two long bones of the forearm

AI overview

The radius is one of the two long bones in your forearm that runs from your elbow to your wrist. It's important because it allows your forearm to rotate and supports your wrist and hand movements.

AI-generated from the Wikipedia summary — may contain errors.

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Wikidata facts

Image
Galeazzi Fracture of Distal Radius.jpg
Connects with
scaphoid bone
Show 3 more facts
NCI Thesaurus ID
C12777
Commons category
Radius (bone)
topic's main category
Category:Radius (bone)
Sources (5)

via Wikidata · CC0

Article · 中文

桡(ráo)骨(radial bone;拉丁語:radius,复数:radii)是人和脊椎动物(四足)前臂两长骨中,外侧的一块骨骼;在某些动物(如蛙和蟾蜍),桡骨与尺骨愈合成桡尺骨。 人的桡骨位于大拇指側,上端为扁圓形的头,上面参与肘关节的组成,而以其周缘与尺骨构成桡尺近侧关节(组成肘关节的一部分),下端粗大,下面参与桡腕关节的组成,其内侧面与尺骨下端相接,构成桡尺远侧关节。 由于桡骨与尺骨上、下端之间均有关节,桡骨可以环绕尺骨做140°-160°的回旋运动,即前臂和手的旋前和旋后运动;当桡骨下端旋至尺骨前方称“旋前”,此时桡骨与尺骨交叉,与此相反的运动称“旋后”,此时两骨并列;这样大大增加手的活动范围。 如果跌倒時用手掌撐地,由於橈骨須承受所有力量,有可能因此發生骨折。

Abstract from DBpedia / Wikipedia · CC BY-SA

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