In accordance with FAR 52.232-22 paragraph (f)(1) âThe Government is not obligated to reimburse the Contractor for costs incurred in excess of the total amount allotted by the Government to this contract.â FYXX funding has not yet been received.
Myofibrils account for roughly 80% of cellular volume, and are the contractile elements of the muscle cell. Myofibrils consist of repeating units called sarcomeres (the contractile unit of the myofibril), which have overlapping myofilaments connected to Z discs at either end of the sarcomere.
6.4 Contraction of Muscle Cells. The contractile apparatus in skeletal and cardiac muscles is a specialized structure for contraction, and consists of basic unit called sarcomere (Fig. 6-10A). These are mainly composed of thick myosin filaments, consisting of polymerized myosins, and thin actin filaments.he protein complex that regulates this contraction exists in the contractile apparatus (Fig. 6-11B). Regulatory proteins bind to actin filaments to keep myosin heads from binding to them. In this condition, actin filaments and myosin heads cannot interact, thus disabling the contraction of muscle cells.