What is perimysium?
Perimysium is a membrane that protects and supports groups of fibers in the skeletal muscle. Together with other support membranes, perimysium is responsible for forming and organizing muscle fibers and also for carrying forces in the muscle. It is estimated that connective tissue, including support membranes, as well as tendons, accounts for about 15% of the individual muscle weight. Collagen fibers give tissue force, while elastin fibers, not surprisingly, support elasticity. The base material acts as an adhesive and lubricant, while holding the structure together and allowing the fibers to move easily against each other.
Most mammals have three types of muscle tissue - heart, skeletal and smooth. The human skeletal muscle, which connects to the bones and is responsible for their movement, forms the highest back of muscle tissues in the body. This type of muscle tissue differs from the other two in many ways, and last but not least, its hierarchy is the organization. Muscle components are grouped into increasingly complex structures, bound and supportana connective tissue.
Every muscle fiber is the only cell covered with a gossamer membrane known as endomysium . The muscle fibers are grouped into bundles known as fascicles that are closed by perimysium. Each fascicle usually contains about 100 to 150 muscle fibers with a wide level of variation. Numerous fascicles together form a muscle abdomen, which is packed in a hard membrane coating known as epimysium . Endomysium, perimysium and epimesium together are known as fascia muscle.
As a muscle, collagen and elastin fibers themselves, the perimysium has a three -stage structure, each level of the organization is based on the level before it. The coarse, twisted fibers run longitudinally and circular and surround the whole fasculity as a hunling net. From this framework, numerous uncorpined collagen fibrils are branched for forming free, fine cloakthat covers all the surface of the fascicle. Finally, the fine bundles of fibrils attach adjacent muscle fibers and endomysium by small structures known as perimysial connecting plates .
muscle fascia provides a frame that promotes muscle fibers and protects them from damage due to excessive stretching. At rest, most of the perimysial fibers lay approximately 60 degrees of muscle fiber angles. When the muscle is stretched, these fibers lose their undulating appearance and the angle decreases to follow the line of force. In this way, perimysium absorbs and distributes forces and reduces stress to muscle fibers. When your strength is removed, the fascia allows muscle fibers to regain the original orientation.
In addition to the provision of structure and support, perimysium can create paths in the muscle. The perimysium, which runs between the fascicles, consists of tunnels of connective tissues known as intramuscular septum . These pipes can hold arterioles, venules and nerves that serve muscles.
Increasing muscle connective tissue is associated with aging and inactivity. Over time, the proportion of elastin to collagen fibers in fascia decreases, as well as the degree of lubrication provided by mucopolysaccharide base. Thus, aging and inactivity are often associated with the overall loss of flexibility. This trend can usually be slowed down or reversed by regular flexibility exercises such as yoga, pilates or simple daily stretching.