Skeletal muscle Skeletal muscle Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth muscle. It is a form of striated muscle tissue, which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. A skeletal muscle refers to multiple bundles (fascicles) of cells joined together called muscle fibers. The fibres and muscles are surrounded by connective tissue layers called fasciae. Muscle fibres, or muscle cells, are formed from the fusion of developmental myoblasts in a process known as myogenesis. Muscle
Bertram A. Bone Atoll, Wake Island, Johnston Atoll and Palmyra Atoll. Bone was meanwhile promoted to the rank of lieutenant colonel in May 1939. In November 1939, the 1st Defense Battalion was activated in San Diego with Bone as its commanding officer. As experienced artillery officer, Bone supervised the formation and initial training. His battalion consisted of the batteries with 5"/51 caliber guns, searchlight and aircraft sound locator and antiaircraft groups with M2 Browning and M1917 Browning machine guns and were ideal for the defense of the islands from the attack from the sea and air. At the beginning of March 1940, 2nd