articular capsule

(redirected from capsula articularis)
Also found in: Dictionary, Encyclopedia, Wikipedia.

capsule

 [kap´sul, kap´sūl]
1. an enclosing structure, as a soluble container enclosing a dose of medicine.
2. a cartilaginous, fatty, fibrous, or membranous structure enveloping another structure, organ, or part. adj., adj cap´sular.
 Capsule. Generalized structure of a synovial joint showing the joint or articular capsule. From Applegate, 2000.
articular capsule the saclike envelope that encloses the cavity of a synovial joint by attaching to the circumference of the articular end of each involved bone. Called also joint capsule.
adipose renal capsule the investment of fat surrounding the fibrous renal capsule, continuous at the hilus with the fat in the renal sinus.
bacterial capsule a gelatinous envelope surrounding a bacterial cell, usually polysaccharide but sometimes polypeptide in nature; it is associated with the virulence of pathogenic bacteria.
Bowman's capsule the globular dilatation forming the beginning of a renal tubule and surrounding the glomerulus. Called also glomerular capsule and malpighian capsule.
c's of the brain two layers of white matter in the substance of the brain; external capsule and internal capsule.
external capsule the layer of white fibers between the putamen and claustrum.
fibrous renal capsule the connective tissue investment of the kidney, which continues through the hilus to line the renal sinus.
Glisson's capsule a sheath of connective tissue accompanying the hepatic ducts and vessels through the hepatic portal. In hepatitis it may become stretched, which is a common cause of pain.
glomerular capsule Bowman's capsule.
capsule of heart pericardium.
internal capsule the fanlike mass of white fibers separating the lentiform nucleus laterally from the head of the caudate nucleus, the dorsal thalamus, and the tail of the caudate nucleus medially. The internal capsule carries both afferent and efferent fibers of the cerebral cortex.
joint capsule articular capsule.
capsule of lens the elastic sac enclosing the lens of the eye.
malpighian capsule Bowman's capsule.
capsule of pancreas a thin sheath of areolar tissue that invests the pancreas (but does not form a definite capsule), the septa of which extend into the gland and divide it into lobules.
renal c's the investing tissue around the kidney, divided into the fibrous renal capsule and the adipose renal capsule.
Tenon's capsule the connective tissue enveloping the posterior eyeball.

joint cap·sule

[TA]
a sac enclosing the articulating ends of the bones participating in a synovial joint, formed by an outer fibrous layer and an inner synovial membrane.
Synonym(s): capsula articularis [TA], articular capsule

articular capsule

Etymology: L, articulare, to divide into joints
an envelope of tissue that surrounds a freely moving joint, composed of an external layer of white fibrous tissue and an internal synovial membrane. See also fibrous capsule.

ar·tic·u·lar cap·sule

(ahr-tik'yū-lăr kap'sŭl)
A sac enclosing a joint, formed by an outer fibrous articular capsule and an inner synovial membrane.
Synonym(s): capsula articularis [TA] , joint capsule.

Articular capsule

An envelope of tissue that surrounds a free moving joint, composed of an external layer of white fibrous tissue and an external synovial membrane that secretes a lubricant into the joint.

articular

pertaining to a joint.

articular capsule
see articular capsule.
articular cartilage
see cartilage.
Enlarge picture
Erosion of the humeral articular cartilage in a dog viewed by arthroscopy. By permission from Tams T, Small Animal Endoscopy, Mosby, 1999
articular cartilage disease
see arthritis, degenerative joint disease.
congenital articular rigidity
caused by inherited defects, intrauterine viral infections, ingestion of poisons including plants and anthelmintics. See also contracted, contracted foal, lupinus.
articular meniscus
similar to an articular disk but is semicircular or C-shaped.
articular plate
the cartilaginous covering at the epiphysis of bones in arthrodial joints. Together with the growth cartilage comprises the joint cartilage.
articular rigidity
fixation of a joint, including arthrogryposis and ankylosis. May be caused by contracture of tendons, ligaments or muscles, by deformity of joint surfaces or by fusion of them.

capsule

1. an enclosing structure, as a soluble container enclosing a dose of medicine.
2. a cartilaginous, fatty, fibrous or membranous structure enveloping another structure, organ or part.

adipose renal capsule
the investment of fat surrounding the fibrous capsule of the kidney, continuous at the hilus with the fat in the renal sinus.
articular capsule
the saclike envelope that encloses the cavity of a synovial joint by attaching to the circumference of the articular end of each involved bone.
bacterial capsule
a gelatinous layer of polysaccharide surrounding a bacterial cell, usually polysaccharide but sometimes polypeptide in nature; it inhibits phagocytosis and is associated with the virulence of pathogenic bacteria.
Bowman's capsule
glomerular capsule.
brain c's
two layers of white matter in the substance of the brain. See also external capsule (below) and internal capsule (below).
external capsule
the layer of white fibers between the putamen and claustrum.
fibrous renal capsule
the connective tissue investment of the kidney, which continues through the hilus to line the renal sinus.
Glisson's capsule
a sheath of connective tissue accompanying the hepatic ducts and vessels within the liver.
glomerular capsule
the globular dilatation forming the beginning of a uriniferous tubule within the kidney, and surrounding the glomerulus. Called also Bowman's capsule and malpighian capsule.
heart capsule
pericardium.
internal capsule
the fanlike mass of white fibers separating the lentiform nucleus laterally from the head of the caudate nucleus, the dorsal thalamus, and the tail of the caudate nucleus medially.
joint capsule
articular capsule.
lens capsule
the elastic sac enclosing the lens of the eye.
malpighian capsule
see glomerular capsule (above).
Tenon's capsule
the connective tissue enveloping the posterior eyeball. Called also vagina bulbi.