Find out about average temperatures and rainfall to help you plan your Virginia visit in any month of the year. Month-by-month tables list weather information for several Virginia cities and towns located in different areas of the state, including some of the most popular travel destinations.ind out about average temperatures and rainfall to help you plan your Virginia visit in any month of the year. Month-by-month tables list weather information for several Virginia cities and towns located in different areas of the state, including some of the most popular travel destinations.
Skeletal muscle is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system.It is one of three major muscle types, the others being cardiac muscle and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons.he myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle, and forms the basic machinery necessary for muscle contraction.
Generally, these muscles are attached to bones of the skeleton, thus called the skeletal muscles. Skeletal muscles are striated and are made up of multinucleate cells. Each cell is referred to as muscle fiber.The cell membrane of muscle fiber is known as sarcolemma, and the cytoplasm is called sarcoplasm. Unlike involuntary muscles, voluntary muscles are attached to bones. Involuntary muscles are visceral. â¢ Voluntary muscle tissue is made up of cylindrical fibres, while involuntary muscles (smooth muscles) are made up of spindle-shaped fibres. Related posts: 1  Difference Between Slow and Fast Twitch Fibers.