| capsule | <microbiology> Thick gel like material attached to the wall of gram-positive or gram-negative bacteria, giving colonies a smooth appearance. May contribute to pathogenicity by inhibiting phagocytosis. Mostly composed of very hydrophilic acidic polysaccharide, but considerable diversity exists. <pathology> Cellular response in invertebrate animals to a foreign body too large to be phagocytosed. A multicellular aggregate of haemocytes or coelomocytes isolates the foreign object. In some insects the capsule is apparently acellular and composed of melanin. (08 Oct 1997) |
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| capsule cell | One of the cells located around the bodies of the cerebrospinal and sympathetic ganglionic neurons. Synonym: capsule cell. Origin: amphi-+ G. Kytos, cell (05 Mar 2000) |
| capsule forceps | Forceps used for removing the capsule of the lens in extracapsular extraction of a cataract. (05 Mar 2000) |
| radiotelemetering capsule | An instrument that transmits measurements by radio impulses, from within the body; e.g., measurements of pressure from within the small bowel. Synonym: radiopill. (05 Mar 2000) |
| malpighian capsule | A thin fibrous membrane enveloping the spleen and continued over the vessels entering at the hilus. See: glomerular capsule. (05 Mar 2000) |
| Gerota's capsule | The condensation of the fibroareolar tissue and fat surrounding the kidney to form a sheath for the organ. Synonym: fascia renalis, Gerota's capsule, Gerota's fascia, perirenal fascia. (05 Mar 2000) |
| cartilage capsule | The more intensely basophilic matrix in hyaline cartilage surrounding the lacunae in which the cartilage cells lie. Synonym: territorial matrix. (05 Mar 2000) |
| Glisson's capsule | A layer of connective tissue ensheathing the hepatic artery, portal vein, and bile ducts as these ramify within the liver. Synonym: capsula fibrosa perivascularis, perivascular fibrous capsule. Connective tissue capsule surrounding the outer surface of the liver, but continuous with septae of some animals which divide parenchyme into lobule, and with the perivascular fibrous capsule at the porta hepatis. Synonym: tunica fibrosa hepatis, Glisson's capsule. (05 Mar 2000) |
| glomerular capsule | 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. Synonym: capsula glomeruli, Bowman's capsule, malpighian capsule, Muller's capsule. (05 Mar 2000) |
| renal capsule | The fibrous connective tissue that surrounds each kidney. (12 Dec 1998) |
| retinaculum of articular capsule of hip | One of several longitudinal folds of the articular capsule of the hip joint reflected onto the femoral neck deep to which the retinacular branches of the medial femoral circumflex artery pass to reach the femoral head. Synonym: retinaculum capsulae articularis coxae, Weitbrecht's fibres. (05 Mar 2000) |
| perivascular fibrous capsule | A layer of connective tissue ensheathing the hepatic artery, portal vein, and bile ducts as these ramify within the liver. Synonym: capsula fibrosa perivascularis, perivascular fibrous capsule. Connective tissue capsule surrounding the outer surface of the liver, but continuous with septae of some animals which divide parenchyme into lobule, and with the perivascular fibrous capsule at the porta hepatis. Synonym: tunica fibrosa hepatis, Glisson's capsule. (05 Mar 2000) |
| Muller's capsule | 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. Synonym: capsula glomeruli, Bowman's capsule, malpighian capsule, Muller's capsule. (05 Mar 2000) |
| cricoarytenoid articular capsule | The capsule enclosing the joint between the arytenoid and cricoid cartilages. Synonym: capsula articularis cricoarytenoidea. (05 Mar 2000) |
| cricothyroid articular capsule | The capsule enclosing the cricothyroid joint. Synonym: capsula articularis cricothyroidea. (05 Mar 2000) |