For further assistance, please contact Navy Federal toll-free in the U.S. at 1-888-868-8123.For toll-free numbers when overseas, visit navyfederal.org/overseas. Use 1-703-255-8837 for collect international calls. Sign In. Sign into online banking with your unique Username, which may be your access number.
Voluntary muscles are the muscles that can be controlled consciously, and are made up of cylindrical fibres. 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.
Skeletal Muscles: 1  They are also known as striped, striated, somatic and voluntary muscles. 2  They are the most abundant type and are found attached to the skeleton. 3  For this reason they are called skeletal muscles. 4  They are innervated by somatic nervous system and are therefore under voluntary control.