Any one of the thicker and denser of the deep fasciæ which cover, invest, and the terminations and attachments of, many muscles. They often differ from tendons only in being flat and thin. See Fascia.

a sheetlike tendon joining one muscle with another or with bone

any of the deeper and thicker fascia that attach muscles to bones; resemble flattened tendons

a flat tendon

a broad flattened tendon.

A fibrous sheet of collagenous bundles serving as a connection between a muscle and its attachment

A tough, flat sheet of connective tissue that distributes the tension of a muscle.

Greek apo = from, and neuron = tendon (later applied to nerve cell and its fibres), used for sheet-like tendons. Adjective - aponeurotic.

a glistening sheet of fibrous connective tissue from which muscle fibers arise or into which they run

A broad tendinous sheet that may serve as the origin or insertion of a skeletal muscle.

Tendon. Thin layer connecting muscle to another tissue.

Aponeuroses (απο, "away" or "of", and νευρον, "sinew") are membranes separating muscles from each other. They have a shiny, whitish-silvery color, and are histologically similar to tendons, but are very sparingly supplied with blood vessels and nerves. When dissected, aponeuroses are papery, and peel off by sections.