Anisotropic – Having unlike mechani- cal properties in different direc- tions; that is, the mechanical properties depend on the orienta- tion of the applied force

Crimp – An organized, sinusoidal waveform of ligament fascicles that provides minimal stiff- ness in response to light stress but increased stiffness in response to increased stress

Ehlers-Danlos syndromes – A hetero- geneous group of syndromes that cause laxity and weakness of ligaments, skin, and blood vessels

Elastin – One of the structural pro- teins in ligaments

Endoligament – The vascularized layer of loose connective tis-
sue that surrounds bundles of individual collagen fibrils within a ligament

Epiligament – The vascularized layer that covers the surface of the entire ligament

Fascicles – Densely organized fiber bundles in muscle and ligament

Fibrillin – A large glycoprotein that is a structural component of elastin-containing microfibrils

Hematoma – A collection of blood resulting from injury

Ligaments – Highly organized, fibrous tissues that connect bone to bone