ligament

(redirected from annular ligament)
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.

ligament

(lĭg`əmənt), strong band of white fibrous connective tissueconnective tissue,
supportive tissue widely distributed in the body, characterized by large amounts of intercellular substance and relatively few cells. The intercellular material, or matrix, is produced by the cells and gives the tissue its particular character.
..... Click the link for more information.
 that joins bones to other bones or to cartilage in the joint areas. The bundles of collagenous fibers that form ligaments tend to be pliable but not elastic. They therefore permit freedom of movement within a certain limited range while holding the attached bones firmly in place. For example, the ligaments at the knee limit the movement of the lower leg to a certain range. Other types of ligaments form fibrous sheets that support such internal organs as the kidneys and the spleen.

Ligament

A strong, flexible connective tissue band usually found between two bony prominences. Most ligaments are composed of dense fibrous tissue formed by parallel bundles of collagen fibers. They have a shining white appearance and are pliable, strong, and noncompliant. A second kind of ligament, composed either partly or almost entirely of yellow elastic fibers, is extensible or compliant, thereby allowing the connected bones to move apart. See Connective tissue, Joint (anatomy)

Ligament

 

in man, a dense band or layer of fibrous tissue that connects skeletal bones or individual organs. Ligaments usually are found near joints and perform a variety of functions, depending on the movements in the joint. Joint capsules are strengthened by reinforcing ligaments, limited in their amplitude by inhibiting ligaments, and directed in their movements by directing ligaments. In many joints, ligaments act as passive bands whose attenuation impairs static functions and alters the shape of the corresponding elements of the skeleton. The main blood vessels that nourish bone pass through some ligaments. The microscopic structure of articular ligaments consists of a variety of dense fibrous tissue whose dominant elements are bands of collagenous and elastic fibers.

The term “ligament” is often applied to anatomic formations not associated with joints, for example, the ligaments of visceral organs, which consist of fine double layers of peritoneum.

ligament

[′lig·ə·mənt]
(engineering)
The section of solid material in a tube sheet or shell between adjacent holes.
(histology)
A flexible, dense white fibrous connective tissue joining, and sometimes encapsulating, the articular surfaces of bones.

ligament

Anatomy any one of the bands or sheets of tough fibrous connective tissue that restrict movement in joints, connect various bones or cartilages, support muscles, etc.
References in periodicals archive ?
The proximal aspect of the capsule was opened, and the annular ligament was found to be attenuated and to be effectively avulsed from its ulnar insertion.
No crepitus was palpated over the treated area of lateral aspect of the annular ligament, however minor crepitus was still palpable at the medial boarder of the annular ligament and reproduced the remaining symptoms reported with full passive flexion of the elbow.
It originated from the anterior capsule in the region of the lateral condyle of the humerus, obliquely crossing the cranial surface of the elbow joint and dividing into a cranial or long portion and a caudal or short portion close to the annular ligament.
The lateral aspect of the elbow is supported by several ligaments including the radial collateral ligament, the annular ligament, the quadrate ligament, and the lateral ulnar collateral ligament.
It then courses distally in a fan-like pattern before merging with the annular ligament and inserting via conjoined fibers onto the proximal ulna.
Stable fractures were subjected to conservative treatment while the unstable fractures underwent surgical stabilization; if there was displacement of C2 on C3 with an unusual widening or rotation of the body and neural arch and if complete disruption of the annular ligament was associated with the pedicle fracture, the lesion was judged as unstable.
Long prostheses can produce excessive tension and may be acoustically inefficient because of stretching of the annular ligaments.
Stay sutures were placed in the trachea, and 5 cartilage rings, incorporating the mass, were resected en bloc by incising the annular ligaments between adjacent cartilage rings.
The ossicles are connected to the walls of the tympanic cavity by ligaments--three for the malleus (superior, anterior, and lateral ligaments) and one each for the incus and stapes (the posterior and annular ligaments, respectively).