Knowledge Base

Muscle fibre

Muscle is composed of many cylindrical-shaped fibres. In some muscles, the fibres run the entire length of the muscle up to several tens of centimetres long. In others, a tendon extends along each edge, and the fibres run diagonally across the muscle between the tendons. Considerable variation can be found among the different skeletal muscles, the actual arrangement of the fibres depending on the function of the muscle.