â¢ In grade 4 mathematics, seven of the 50 states included in the analysis set standards for proficiency (as measured on the NAEP scale) that were lower than the Basic performance on NAEP, 42 were in the NAEP Basic range, and one in the Proficient range. In grade 8 mathematics, 12 of 49 states included in the analysis
noun, plural: skeletal muscles. A voluntary, striated (vertebrate) muscle that is associated with the skeleton, and thus move parts of the skeletal system. Supplement. The muscular system of the vertebrates is comprised of various muscles.
Skeletal muscle is an example of muscle tissue, one of the four types of basic tissue. The essential characteristic of muscle tissue is that it shortens or contracts. There are three kinds of muscle tissue, skeletal, cardiac and smooth.keletal muscle is the only type of muscle that we can consciously control through our nervous system. This is the reason it is also voluntary. Skeletal muscle cells are also long and cylindrical. For this reason a skeletal muscle cell can also be referred to as a skeletal muscle fiber.