Tendon vs. Aponeurosis

Main Difference

The main difference between Tendon and Aponeurosis is that the Tendon is a type of tissue that connects muscle to bone and Aponeurosis is a sheet of pearly-white fibrous tissue that attaches sheet-like muscles needing a wide area of attachment.

• Tendon

  A tendon or sinew is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.

  Tendons are similar to ligaments; both are made of collagen. Ligaments join one bone to another bone, while tendons connect muscle to bone for a proper functioning of the body

• Aponeurosis

  An aponeurosis (; plural: aponeuroses) is a type or a variant of the deep fascia, in the form of a sheet of pearly-white fibrous tissue that attaches sheet-like muscles needing a wide area of attachment. Their primary function is to join muscles and the body parts they act upon, whether it be bone or other muscles. They have a shiny, whitish-silvery color, are histologically similar to tendons, and are very sparingly supplied with blood vessels and nerves. When dissected, aponeuroses are papery and peel off by sections. The primary regions with thick aponeuroses are in the ventral abdominal region, the dorsal lumbar region, the ventriculus in birds, and the palmar (palms) and plantar (soles) regions.