capsule /cap·sule/ (kap´sul)
Articular capsule
articular capsule
1. an enclosing structure, as a soluble container enclosing a dose of medicine.
2. a cartilaginous, fatty, fibrous, membranous structure enveloping another structure, organ, or part.cap´sular
adipose renal capsule the investment of fat surrounding the fibrous capsule of the kidney, continuous at the hilum with the fat in the renal sinus.
articular capsule joint capsule; the saclike envelope enclosing the cavity of a synovial joint.
auditory capsule the cartilaginous capsule of the embryo that develops into the bony labyrinth of the inner ear.
bacterial capsule an envelope of gel surrounding a bacterial cell, usually polysaccharide but sometimes polypeptide in nature; it is associated with the virulence of pathogenic bacteria.
cartilage capsule a basophilic zone of cartilage matrix bordering on a lacuna and its enclosed cartilage cells.
external capsule the layer of white fibers between the putamen and claustrum.
fibrous renal capsule the connective tissue investment of the kidney, continuous through the hilum to line the renal sinus.
Glisson's capsule the connective tissue sheath accompanying the hepatic ducts and vessels through the hepatic portal.
glomerular capsule , capsule of glomerulus the globular dilatation forming the beginning of a uriniferous tubule within the kidney and surrounding the glomerulus.
internal capsule a 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 c.
capsule of lens the elastic envelope covering the lens of the eye.
optic capsule the embryonic structure from which the sclera develops.
otic capsule the skeletal element enclosing the inner ear mechanism. In the human embryo, it develops as cartilage at various ossification centers and becomes completely bony and unified at about the 23rd week of fetal life.
renal capsules 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.
| articular capsule n. A sac enclosing a joint, formed by an outer fibrous membrane and an inner synovial membrane. Also called 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.
Mentioned in: Dislocations and Subluxations
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.
articular
pertaining to a joint.
articular capsule
see articular capsule.
articular cartilage
see cartilage.
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Erosion of the humeral articular cartilage in a dog viewed by arthroscopy. By permission from Tams T, Small Animal Endoscopy, Mosby, 1999
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.
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