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.
striated muscle. noun. Medical Definition of striated muscle. : muscle tissue that is marked by transverse dark and light bands, that is made up of elongated fibers, and that includes skeletal and usually cardiac muscle of vertebrates and most muscle of arthropodsâcompare smooth muscle, voluntary muscle.