LL1.H1.6 Tendons and Ligaments

Tendons and Ligaments:

  • Tendons and ligaments are composed of dense regular connective tissue
  • Tendons connect muscles to their attachment sites
  • All muscles have a tendon connecting the fleshy component of the muscle to its attachment site
  • In most cases the tendons attach to bone (or cartilage) but in some instances the tendon of one muscle will connect to the tendon of another muscle
  • This occurs, for example, in the midline of the anterior abdominal wall
  • Tendons may be long or short
  • Some tendons have a rounded cross-section, others ovoid and others have a sheet-like configuration
  • A sheet-like tendon is also known as an aponeurosis
  • Ligaments connect bone to bone
  • Most ligaments are composed of collagen and do not stretch
  • They are usually associated with synovial joints where they help to stabilise the joint by preventing movement in a particular direction
  • Some synovial joints may have many ligaments
  • There are some ligaments in the body which contain elastic fibres in addition to collagen fibres
  • These are mainly secondary ligaments associated with the vertebral column and help to straighten it after it has been bent

Question:

What other factors may contribute to the stability of a synovial joint?