capsule (kap´sul)

1. capsula 2. A fibrous tissue layer enveloping an organ or a tumor, especially if benign. 3. A solid dosage form in which the drug is enclosed in either a hard or soft soluble container or "shell" of a suitable form of gelatin. 4. A hyaline glycosaminoglycan sheath on the wall of a fungus cell, blastoconidium, or spore. [L. capsula, dim. of capsa, box]
adipose c. fatty renal c
adrenal c. suprarenal gland
articular c. a sac enclosing a joint, formed by an outer fibrous articular c. and an inner synovial membrane.capsula articularis [NA] , joint c;
atrabiliary c. suprarenal gland
auditory c. the cartilage that, in the embryo, surrounds the developing auditory vesicle and develops into the bony labyrinth of the inner ear.
bacterial c. a layer of slime of variable composition which covers the surface of some bacteria; capsulated cells of pathogenic bacteria are usually more virulent than cells without capsules because the former are more resistant to phagocytic action.
Bonnet's c. the anterior part of the vagina bulbi.
Bowman's c. glomerular c
brood c.'s small hollow projections from the lining membrane of a hydatid cyst from which the scoleces arise.
cartilage c. the more intensely basophilic matrix in hyaline cartilage surrounding the lacunae in which the cartilage cells lie.territorial matrix;
cricoarytenoid articular c. the capsule enclosing the joint between the arytenoid and cricoid cartilages.capsula articularis cricoarytenoidea [NA];
cricothyroid articular c. the capsule enclosing the cricothyroid joint.capsula articularis cricothyroidea [NA];
Crosby c. an attachment to the end of a flexible tube, used for peroral biopsy of the small intestine, by which a piece of mucosa is sucked into an opening in the c. and cut off.
crystalline c. lens c
external c. a thin lamina of white substance separating the claustrum from the putamen. It joins the internal c. at either extremity of the putamen, forming a c. of white matter external to the lenticular nucleus.capsula externa [NA] , periclaustral lamina;
extreme c. the layer of white matter separating the claustrum from the cortex of the insula, probably representing largely corticopetal and corticofugal fibers of the insular cortex.capsula extrema;
eye c. fascial sheath of eyeball
fatty renal c. the perirenal fat.capsula adiposa renis [NA] , adipose c;
fibrous c. any fibrous envelope of a part. the fibrous capsule of an organ.stratum fibrosum [NA] , tunica fibrosa [NA] , capsula fibrosa;
fibrous articular c. the outer fibrous part of the capsule of a synovial joint, which may in places be thickened to form capsular ligaments.membrana fibrosa [NA] , stratum fibrosum [NA] , fibrous membrane;
fibrous c. of kidney a fibrous membrane ensheathing the kidney.capsula fibrosa renis [NA] , tunica fibrosa renis;
fibrous c. of liver 1. a layer of connective tissue ensheathing the hepatic artery, portal vein, and bile ducts as these ramify within the liver;capsula fibrosa perivascularis [NA] , perivascular fibrous c; 2. connective tissue c. surrounding the outer surface of the liver, but continuous with septae of some animals which divide parenchyme into lobule, and with the perivascular fibrous c. at the porta hepatis.tunica fibrosa hepatis [NA] , Glisson's c;
fibrous c. of parotid gland parotid fascia
fibrous c. of spleen the fibrous capsule of the spleen, containing collagen, elastic fibers, and smooth muscle.tunica fibrosa splenis [NA] , tunica fibrosa lienis [NA] , capsula lienis, tunica propria lienis;
fibrous c. of thyroid gland the fibrous sheath of the thyroid gland.capsula fibrosa glandulae thyroideae [NA];
Gerota's c. renal fascia
Glisson's c. fibrous c. of liver (2)
glomerular c. the expanded beginning of a nephron composed of an inner and outer layer: the visceral layer consists of podocytes which surround a tuft of capillaries (glomerulus); the parietal layer is simple squamous epithelium which becomes cuboidal at the tubular pole.capsula glomeruli [NA] , Bowman's c., malpighian c. (1) , Müller's c;
internal c. a massive layer (8 to 10 mm thick) of white matter separating the caudate nucleus and thalamus (medial) from the more laterally situated lentiform nucleus (globus pallidus and putamen). It consists of 1) fibers ascending from the thalamus to the cerebral cortex that compose, among others, the visual, auditory, and somatic sensory radiations, and 2) fibers descending from the cerebral cortex to the thalamus, subthalamic region, midbrain, hindbrain, and spinal cord. The internal c. is the major route by which the cerebral cortex is connected with the brainstem and spinal cord. Laterally and superiorly it is continuous with the corona radiata which forms a major part of the cerebral hemisphere's white matter; caudally and medially it continues, much reduced in size, as the crus cerebri which contains, among others, the pyramidal tract. On horizontal section it appears in the form of a V opening out laterally; the V's obtuse angle is called genu (knee); its anterior and posterior limbs, respectively, the crus anterior and crus posterior.capsula interna [NA];
joint c. articular c
lens c. the capsule enclosing the lens of the eye.capsula lentis [NA] , crystalline c., lenticular c., phacocyst;
lenticular c. lens c
malpighian c. 1. glomerular c 2. a thin fibrous membrane enveloping the spleen and continued over the vessels entering at the hilus.
Müller's c. glomerular c
nasal c. the cartilage around the developing nasal cavity of the embryo.
optic c. the concentrated zone of mesenchyme around the developing optic cup; the primordium of the sclera of the eye.
otic c. the cartilage c. surrounding the inner ear mechanism; in elasmobranchs, it remains cartilaginous in the adult; in the embryos of higher vertebrates, it is cartilaginous at first but later becomes bony (at approximately 23 weeks in humans).
perivascular fibrous c. fibrous c. of liver (1)
radiotelemetering c. an instrument that transmits measurements by radio impulses, from within the body; e.g., measurements of pressure from within the small bowel.radiopill;
seminal c. seminal vesicle
suprarenal c. suprarenal gland
Tenon's c. fascial sheath of eyeball


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