perimysium: the sheath of connective tissue that covers a bundle of muscle fibers
connective tissue: tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells; supports organs and fills spaces between them and forms tendons and ligaments
high-bush blueberry: high-growing deciduous shrub of eastern North America bearing edible blueish to blackish berries with a distinct bloom; source of most cultivated blueberries