Retinacula

Definition

Retinacula are bands of fibrous tissue in the body that hold tendons close to the bone at joints, ensuring they do not dislocate during movement. They function similarly across various joints but are particularly notable in the pectoral girdle and upper limbs where they assist in the stabilization and efficient functioning of the muscles and tendons.

Related terms

Tendons: Fibrous connective tissues that attach muscles to bones, enabling movement at joints when muscles contract.

Pectoral Girdle: The skeletal framework in the upper body that provides attachment for several muscles responsible for movements of the upper limb.

Fibrous Tissue: A type of connective tissue composed mainly of collagen fibers, providing structural support and strength to various structures within the body.