This text explains the roles of certain leg muscles and their significance in various movements. It stresses the importance of anatomical study and understanding muscle function through observation of both models and real-life examples. The focus is on how these muscles enable actions such as pulling the leg inward, lifting the heel, and bending the knee.
Function and Service of the Muscles:
The text describes four muscles known in Latin as Externus, Semimembranosus, Gracilis, and another type of Semimembranosus, which are essential for moving the leg and foot. Specifically, the Gracilis helps draw the leg inward, while the Membranosus is considered for its long length, allowing internal movement. When standing on toes, the muscles known today as the Gastrocnemius and Soleus swell to lift the heel and straighten the foot. The Tibiaeus and Peroneus also help in bending the knee. The text emphasizes the importance of studying anatomical models thoroughly and observing living examples to gain a solid understanding of muscle structure and function.