In anatomy, the term<unk>  is used to denote three different types of structures: 
The first meaning is most commonly what is meant by the term<unk> ". After briefly discussing the other two types of<unk> s, the remainder of this article will focus upon the first type.
Ligament
Synovium
Tendon
Vesicle 
Cuticle
Cartilage
Cementum
Lumen 