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股四头肌起止点及功能分别是什么
更新时间: 2020-11-03 00:00:00  

股四头肌组成:由股直肌、股中肌、股外肌、股内肌。

股四头肌功能:近固定收缩时,使小腿在膝关节处伸,股直肌可使大腿在髋关节处屈;远固定时,使大腿在膝关节处伸,维持人体直立姿势。

股四头肌起点:起于髂前下棘。

股四头肌止点:止于胫骨粗隆。

股四头肌是人体的大腿肌肉,位于大腿肌肉前面,要使大腿强壮首要是发展股四头肌,因为股四头肌是人体最大、最有力的肌肉之一。

关键词: 起止点 功能 别是 什么

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