Page 117 - Anatomy and Physiology of Farm Animals, 8th Edition

102 / Anatomy and Physiology of Farm Animals

yndesmology (arthrology) is the study Fibrous Joints
Sof the articulations (unions) between
VetBooks.ir bones, which are commonly called joints. Fibrous joints have no joint cavity. The

Not all boney articulations are mobile;
many allow only very slight or even no bones are united by fibrous tissue (Fig. 6‐1).
The joint therefore is capable only of very
movement under normal circumstances. limited movement.
In describing them, joints can be classified Syndesmosis refers to a joint united
under a variety of schemes, usually by that by fibrous tissue that permits only slight
of anatomy or by degree of movement. The movement. The normal union of the
tissue that unites the bones of a joint is bodies of the splint bones with cannon
generally fibrous tissue or cartilage. The bone of the horse is an example of
structure and arrangement of these tissues syndesmosis.
reflect the joint’s specific task. A suture is the particular fibrous joint
between flat bones of the skull. Sutures
Classification of Joints often completely ossify in maturity.
A gomphosis is the specialized fibrous
Joints can be described according to the joint that unites teeth to the boney sockets
material that unites them or by the type of (alveoli) of the mandible and maxilla. The
movements they permit. Based on the tissue collagenous tissues and fibroblasts that
types that constitute them, joints may be join the tooth to the socket constitute the
classified as fibrous, cartilaginous, or synovial. periodontium.

(A) (C)

(B) (D)

Figure 6-1. Types of non‐synovial joints. (A) Suture between flat bones of skull. (B) Synchondrosis
(growth plate) visible on longitudinal section of immature humerus. (C) Symphysis (an intervertebral
disk) between vertebral bodies (median section). (D) Gomphosis between tooth and bone.