桡骨
橈骨 | |
---|---|
上肢 | |
橈骨為 #1 | |
标识字符 | |
拉丁文 | Radius |
MeSH | D011884 |
TA98 | A02.4.05.001 |
TA2 | 1210 |
FMA | FMA:23463 |
格雷氏 | p.219 |
《骨骼解剖学术语》 |
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。
图片
- 桡骨的位置(显示为红色)。
- 桡骨的形状(左臂)
- 上肢
- 桡骨的骨茎突 - 前视图
- Radius, ulnar notch - posterior view
- Radius, radial head - posterior view
- Radius, radial head - anterior view
- Radius l. dx. - ant. view
- Radius l. dx. - post. view
- Right human radius and ulna - post. view
- Human arm bones diagram
- Bones of left forearm - ant. view
- Bones of left forearm - post. view
- Left elbow-joint, showing anterior and ulnar collateral ligaments
- The Supinator
- Cross-section through middle of forearm
- Transverse section across distal ends of radius and ulna
- Radius
- Muscles of upper limb. Cross section.
- Wrist joint. Deep dissection. Posterior view.
- Wrist joint. Deep dissection.Anterior, palmar, view.
- Wrist joint. Deep dissection.Anterior, palmar, view.
- Wrist joint. Deep dissection.Anterior, palmar, view.
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