. Quain's Elements of anatomy. r only a small part of the adjacentsurfaces. Synchondroses and sutures are immoveable articula-tions, but in symphyses and syndesmoses, which may beclassed together as partially moveable articulations, acertain amount of play is allowed, varying in extent anddirection according to the thickness of the uniting sub-stance and the nature of the other connections formedby the articulating DiARTHROSis OR DiscoxTiNTJOUS ARTICULATION.—This division includes thecomplete joints, with synovial cavities separating the articular surfaces of the bones,and is attended
. Quain's Elements of anatomy. r only a small part of the adjacentsurfaces. Synchondroses and sutures are immoveable articula-tions, but in symphyses and syndesmoses, which may beclassed together as partially moveable articulations, acertain amount of play is allowed, varying in extent anddirection according to the thickness of the uniting sub-stance and the nature of the other connections formedby the articulating DiARTHROSis OR DiscoxTiNTJOUS ARTICULATION.—This division includes thecomplete joints, with synovial cavities separating the articular surfaces of the bones,and is attended with considerable yet varying degrees of mobility. In this form ofjoint plates of cartilage cover the articular parts of the bones and present within thejoint free surfaces of remarkable smoothness, and these surfaces are lubricated bythe synovial fluid secreted from the delicate membrane which lines the fibrous ^ This form of articulation is sometimes regarded as a third primary division, under the name ofamxjh [ BSE0U3 LICAMEN Fig. 172.—Scheme of a SYNDESMOSIS. (G. D. T.) VAEIODS FORMS OF JOINTS. 119 coverings and all other parts of the articular cavity except those formed by membrane is continuous with the margin of the articular cartilages, and alongwith them completely encloses the joint-cavity. The bones are united by fibroustissue in the various forms of ligaments, such as membranous capsules, flat bands,or rounded cords. These ligaments, it is true, are not always so tight as to main-tain the bones in close contact in all positions of the joint, but are rather tightenedin some positions and relaxed in others, so that in many cases they are to be looked
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectanatomy
