Читать книгу Musculoskeletal Disorders - Sean Gallagher - Страница 84

The myotendinous junctions and entheses described earlier facilitate force transfer between these structures. For example, the myotendinous junctions allow tendons to absorb sudden shocks in order to limit muscular damage (Selvanetti, Cipolla, & Puddu, 1997), and the entheses transfer muscle tensile forces across tendons and onto bone, enabling joint flexion. For this purpose, the collagen fibers of tendons are continuous with those in the endomysium and perimysium connective tissue layers in muscles, as well as with the periosteum of bones. However, tendons fibrils do not run continuously from muscle to bone. Instead, stress is transferred through a hydrated proteoglycan‐rich gel matrix in which the fibers of this fiber‐reinforced composite are contained (Ker, 2002; Shepherd & Screen, 2013).