Stuart P R
Musculoskeletal Unit, Freeman Hospital, Newcastle-upon-Tyne, UK.
J Hand Surg Br. 1996 Dec;21(6):714-22. doi: 10.1016/s0266-7681(96)80175-6.
The pronator quadratus muscle has been neglected to a great extent in the anatomical and functional literature. This study confirms the consistent presence of two distinct heads to the muscle, and defines the gross and microscopic anatomy. The functional significance of these heads has been studied using in vitro and in vivo techniques to demonstrate that the superficial head is the prime mover in forearm pronation, and that the deep head is a dynamic stabilizer of the distal radioulnar joint.
旋前方肌在解剖学和功能学文献中在很大程度上被忽视了。本研究证实该肌肉始终存在两个不同的头，并明确了其大体和微观解剖结构。已使用体外和体内技术研究了这些头的功能意义，以证明浅层头是前臂旋前的主要推动者，而深层头是桡尺远侧关节的动态稳定器。
