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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

calcarine fasciculus
A group of short association fibres beneath the calcarine fissure of the occipital lobe of the cerebrum. ... (05 Mar 2000) ...

calcarine fissure
Synonym for calcarine sulcus ... A deep fissure on the medial aspect of the cerebral cortex, extending on an arched line from the isthmus of the fornicate gyrus back to the occipital pole, marking the border between the lingual gyrus below and the cuneus above it. The cortex in the depth of the sulcus corresponds to the horizontal meridian of the co …

calcarine sulcus
A deep fissure on the medial aspect of the cerebral cortex, extending on an arched line from the isthmus of the fornicate gyrus back to the occipital pole, marking the border between the lingual gyrus below and the cuneus above it. The cortex in the depth of the sulcus corresponds to the horizontal meridian of the contralateral half of the visual f …

calcariuria
Excretion of calcium (lime) salts in the urine. ... Origin: L. Calcarius, of lime, + G. Ouron, urine ... (05 Mar 2000) ...

calcein
<chemical> A calcium chelating agent that fluoresces brightly in the presence of bound calcium. ... The acetomethoxy derivative can be transported into live cells and the reagent is useful as a viability test and for short term marking of cells. ... (21 Mar 1998) ...

calcergy
Local calcification of soft tissue occurring at the site of injection of certain chemical compounds, such as lead acetate or cerium chloride; hydroxyapatite deposits are found in the calcified areas. ... Origin: L. Calx, chalk, calcium, + G. Ergon, work, production ... (05 Mar 2000) ...

calces
Plural of calx. ... (05 Mar 2000) ...

calcic
Relating to lime. ... (05 Mar 2000) ...

calcic water
A water containing appreciable quantities of calcium salts in solution. ... (05 Mar 2000) ...

calcicosis
Pneumoconiosis from the inhalation of limestone dust. ... (05 Mar 2000) ...

calcidiol
25-hydroxycholecalciferol (a 3,25-diol);the first step in the biological conversion of vitamin D3 to the more active form, calcitriol; it is more potent than vitamin D3. ... Synonym: 25-hydroxycholecalciferol, calcifediol. ... Calcidiol 1a-hydroxylase, 25-hydroxycholecalciferol 1a-hydroxylase, the monooxygenase that forms calcitriol from calcidiol us …

calciferol
<hormone> This vitamin is produced by the body when exposed to UV light. Plays important role in calcium and phosphorus metabolism. Deficiency is known as rickets. ... Symptoms include soft (weak) and bendable bones, stunted growth, bow legs, chest deformities and knock-knees. ... (21 Mar 1998) ...

calciferous
1. Containing lime. ... 2. Producing any of the salts of calcium. ... Synonym: calcophorous. ... (05 Mar 2000) ...

calcific
Forming or depositing calcium salts. ... (05 Mar 2000) ...

calcific bursitis
A bursa is a thin fluid-filled sac that reduces friction forces between tissues of the body. Chronic (repeated of long-standing) inflammation of the bursa (bursitis) can lead to calcification of the bursa. This is referred to as calcific bursitis. The calcium deposition (calcification) can occur as long as the inflammation is present. ... (12 Dec 19 …

calcific nodular aortic stenosis
Most common type of aortic stenosis, occurring usually in elderly men, in which the cusps contain calcified fibrous nodules on both surfaces; the causes include rheumatic fever, atherosclerosis, age-related degeneration, and congenitally bicuspid aortic valve. ... (05 Mar 2000) ...

calcific pancreatitis
calcareous pancreatitis ...

calcification
<biochemistry> The process by which organic tissue becomes hardened by a deposit of calcium salts within its substance. ... Origin: L. Facere = to make. ... (21 Mar 1998) ...

calcification lines of Retzius
Incremental line's of rhythmic deposition of successive layers of enamel matrix during development. ... Synonym: lines of Retzius. ... (05 Mar 2000) ...

calcification, physiologic
Process by which organic tissue becomes hardened by the physiologic deposit of calcium salts. ... (12 Dec 1998) ...

calcified cartilage
Cartilage in which calcium salts are deposited in the matrix; it occurs prior to replacement by osseous tissue and sometimes in aging cartilage. ... (05 Mar 2000) ...

calcified liver metastases
<radiology> Mucinous carcinoma of GI tract (colon, rectum, stomach), endocrine pancreatic carcinoma, leiomyosarcoma, osteosarcoma, malignant melanoma, papillary serous ovarian cystadenocarcinoma, lymphoma, pleural mesothelioma, neuroblastoma, breast carcinoma, medullary thyroid carcinoma, renal cell carcinoma, lung carcinoma, testicular carci …

calcify
To deposit or lay down calcium salts, as in the formation of bone. ... (05 Mar 2000) ...

calcifying odontogenic cyst
A mixed radiolucent-radiopaque lesion of the jaws with features of both a cyst and a solid neoplasm; characterised microscopically by an epithelial lining showing a palisaded layer of columnar basal cells, presence of ghost cell keratinization, dentinoid, and calcification. ... Synonym: calcifying and keratinizing odontogenic cyst, Gorlin cyst. ... ( …

calcigerous
Producing or carrying calcium salts. ... Origin: calcium + L. Gero, to bear ... (05 Mar 2000) ...

calcimedins
annexins, haem ... (18 Nov 1997) ...

calcimycin
<chemical> An ionophorous, polyether antibiotic from streptomyces chartreusensis. It binds and transports cations across membranes and uncouples oxidative phosphorylation while inhibiting atpase of rat liver mitochondria. The substance is used mostly as a biochemical tool to study the role of divalent cations in various biological systems. …

calcination
<chemistry> The process of heating a solid below its melting point to break it down into another compound (for instance, heating calcium carbonate to send off carbon dioxide gas and create calcium oxide). ... (21 Mar 1998) ...

calcine
To expel water and volatile matter by heat. ... (05 Mar 2000) ...

calcined magnesia
Synonym for magnesium oxide ... <chemical> Magnesium oxide (mgo). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses. ... Pharmacological action: antacids, cathartic. ... Chemical …

calcineurin
<protein> Calmodulin stimulated protein phosphatase (EC 3.1.3.16), the major calmodulin binding protein in brain. ... Enzymic activity is inhibited by binding of immunophilin ligand complex (immunophilin alone does not bind) and therefore may play a part in the mechanism of action of cyclosporin A and FK506. Thought also to be involved in the …

calcinosis
<dermatology> A condition which is characterised by the deposition of calcium in nodular foci in the body tissues. ... (21 Mar 1998) ...

calcinosis circumscripta
Localised deposits of calcium salts in the skin and subcutaneous tissues, usually surrounded by a zone of granulomatous inflammation; clinically, the lesions resemble the tophi of gout. ... (05 Mar 2000) ...

calcinosis cutis
A deposit of calcium in the skin; usually occurs secondary to a preexisting inflammatory, degenerative, or neoplastic dermatosis, and is frequently seen in scleroderma. ... Synonym: dystrophic calcinosis, skin stones. ... (05 Mar 2000) ...

calcinosis intervertebralis
Calcium deposit in vertebral disk. ... (05 Mar 2000) ...

calcinosis universalis
<dermatology> Diffuse deposits of calcium salts in the skin and subcutaneous tissues, connective tissue, and other sites. ... It may be associated with dermatomyositis, occurs more frequently in young persons, and is often fatal; serum levels of calcium and phosphorus are generally within normal limits. ... (05 Mar 2000) ...

calcinuric diabetes
Synonym for hypercalciuria ... <biochemistry> The excretion of abnormally large amounts of calcium in the urine, seen in cases of hyperparathyroidism. ... Origin: Gr. Ouron = urine ... (11 Jan 1998) ...

calciokinesis
Mobilization of stored calcium. ... Origin: calcium + G. Kinesis, motion ... (05 Mar 2000) ...

calciokinetic
Pertaining to or causing calciokinesis. ... (05 Mar 2000) ...

calciol
Synonym for cholecalciferol ... <biochemistry> The vitamin produced by the body when exposed to ultraviolet light. It has an important role in calcium and phosphorus metabolism. ... Deficiency is known as rickets which presents with soft (weak) and bendable bones, stunted growth, bow legs, chest deformities and knock-knees. ... (15 Jan 1998) ...

calciorrhachia
The presence of calcium in the cerebrospinal fluid. ... Origin: calcium + G. Rhachis, spine + -ia ... (05 Mar 2000) ...

calciostat
Rarely used term denoting a postulated mechanism by which the parathyroid hormone production is increased when serum calcium is low and decreased when it is high. ... Origin: calcium + G. Statos, standing ... (05 Mar 2000) ...

calciotraumatic
Relating to the line of disturbed calcification that appears in the dentin of the incisor teeth of young rats placed on a rachitogenic diet: high in calcium and low in phosphorus, with no vitamin D. ... (05 Mar 2000) ...

calcipectic
Pertaining to calcipexis. ... (05 Mar 2000) ...

calcipenia
A condition in which there is an insufficient amount of calcium in the tissues and fluids of the body. ... Origin: calcium + G. Penia, poverty ... (05 Mar 2000) ...

calcipenic
Pertaining to calcipenia. ... (05 Mar 2000) ...

calcipexic
Related or pertaining to calcipexis. ... (05 Mar 2000) ...

calcipexis
Calcipexy ... Fixation of calcium in the tissues, an occasional cause of tetany in infants. ... Origin: calcium + G. Pexis, a fixing ... (05 Mar 2000) ...

calciphilia
A condition in which the tissues manifest an unusual affinity for, and fixation of, calcium salts circulating in the blood. ... Origin: calcium + G. Phileo, to love ... (05 Mar 2000) ...

calciphylaxis
Condition of induced systemic hypersensitivity in which tissues respond to appropriate challenging agents with a sudden local calcification. ... (12 Dec 1998) ...

calciprivia
Absence or deprivation of calcium in diet. ... (05 Mar 2000) ...

calciprivic
Deprived of calcium. ... (05 Mar 2000) ...

calcite
<microscopy> A doubly refracting mineral used in the manufacture of polarizing prisms. It is uniaxial negative and in the trigonal diversion of the hexagonal system of crystals. Its indexes are epsilon =1.486, omega =1.658, its hardness is 3 on the Mohr scale and specific gravity 2.711. ... See: balsam, Canada. ... (05 Aug 1998) ...

calcitetrol
The 1,24,25-triol (thus, a 1,3,24,24-tetrol) of cholecalciferol. ... (05 Mar 2000) ...

calcitonin
<protein> A polypeptide hormone produced by C cells of the thyroid that causes a reduction of calcium ions in the blood. ... (18 Nov 1997) ...

calcitonin gene-related peptide
<protein> A second product transcribed from the calcitonin gene. Calcitonin gene related peptide is found in a number of tissues including nervous tissue. It is a vasodilator that may participate in the cutaneous triple response. ... It is a neuropeptide of 37 amino acids with structural homology to salmon calcitonin. Co-localises with substan …

calcitriol
1_, 25 dihydroxyvitamin D3. The form of vitamin D3 that is biologically active in intestinal transport and calcium resorption by bone. ... (18 Nov 1997) ...

calcitroic acid
Rarely used term for a metabolite of calcitriol, involving the loss of carbons 24, 25, 26, and 27 and the oxidation of carbon 23 to a carboxylic acid; its function is unknown. ... (05 Mar 2000) ...

calcium
<element> An element taken in through the diet that is essential for a variety of bodily functions, such as neurotransmission, muscle contraction and proper heart function. Imbalances of calcium can lead to many health problems and excess calcium in nerve cells can cause their death. ... (22 May 1997) ...

calcium alginate
A topical haemostatic. ... (05 Mar 2000) ...

calcium aminosalicylate
The calcium salt of p-aminosalicylic acid, with the same uses. ... (05 Mar 2000) ...

calcium antagonist
calcium channel-blocking agent ...

calcium ATPase
<enzyme> Usually used of the calcium pumping ATPase present in high concentration as an integral membrane protein of the sarcoplasmic reticulum of muscle. ... This pump lowers the cytoplasmic calcium level and causes contraction to stop. Normal function of the pump seems to require a local phospholipid environment from which cholesterol is exc …

calcium benzoylpas
Calcium 4-benzamidosalicylate;an antituberculous agent. ... (05 Mar 2000) ...

calcium bromide
Used to meet the same indications as potassium bromide. ... (05 Mar 2000) ...

calcium carbide
CaC2;blackish crystalline lumps which when in contact with water yield acetylene gas. ... (05 Mar 2000) ...

calcium carbimide
<drug> This drug is used to treat alcoholism, if a person takes this drug and then drinks any alcohol at all, they will get sick (headache, nausea, vertigo, etc.) ... (09 Oct 1997) ...

calcium carbonate
An astringent, an antacid ... (27 Sep 1997) ...

calcium caseinate
The form of casein present in cow's milk; used in dietetic preparations; has been used for diarrhoea in infants. ... (05 Mar 2000) ...

calcium channel
<physiology> A membrane channel that is specific for calcium. It is a voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorised as l, t, n, or p types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. ... (12 May 2002) ...

calcium channel agonist
<pharmacology> Agents that increase calcium influx into calcium channels of excitable tissues. ... This causes vasoconstriction in vascular smooth muscle and/or cardiac muscle cells as well as stimulation of insulin release from pancreatic islets. Therefore, tissue-selective calcium agonists have the potential to combat cardiac failure and end …

calcium channel antagonist
<pharmacology>

calcium channel-blocker
Synonym for calcium channel antagonist ... <pharmacology>

calcium chloride
<chemical> Calcium chloride (cacl2). A salt that occurs as white, hard fragments or granules. It is used as a calcium replenisher, administered intravenously, has been used as an acid-producing diuretic and urinary acidifier and to control bleeding in such conditions as purpura, intestinal bleeding, and small multiple haemorrhages. It is also …

calcium citrate
<chemical> A colourless crystalline or white powdery organic, tricarboxylic acid occurring in plants, especially citrus fruits, and used as a flavoring agent, as an antioxidant in foods, and as a sequestrating agent. ... Pharmacological action: antioxidants. ... (12 Dec 1998) ...

calcium compound
Inorganic compounds that contain calcium as an integral part of the molecule. ... (12 Dec 1998) ...

calcium current
Inflow of calcium ions through specific calcium channels. Critically important in release of transmitter substance from presynaptic terminals. ... (18 Nov 1997) ...

calcium cyanamide
Synonym for calcium carbimide ... <drug> This drug is used to treat alcoholism, if a person takes this drug and then drinks any alcohol at all, they will get sick (headache, nausea, vertigo, etc.) ... (09 Oct 1997) ...

calcium deficiency
A low blood calcium (hypocalcaemia) makes the nervous system highly irritable with tetany (spasms of the hands and feet, muscle cramps, abdominal cramps, overly active reflexes, etc.). Chronic calcium deficiency contributes to poor mineralization of bones, soft bones (osteomalacia) and osteoporosis; and, in children, rickets and impaired growth. Fo …

calcium dependent regulator protein
<protein> (CDRP) Early name for calmodulin. ... (18 Nov 1997) ...

calcium dobesilate
<chemical> A drug used to reduce haemorrhage in diabetic retinopathy. ... Pharmacological action: haemostatics. ... Chemical name: Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt (2:1) ... (12 Dec 1998) ...

calcium excess
Overly high intake of calcium (hypercalcaemia) may cause muscle weakness and constipation, affect the conduction of electrical impulses in the heart (heart block) lead to calcium stones in the urinary tract, impair kidney function (through nephrocalcinosis), and interfere with the absorption of iron predisposing to iron deficiency. According to the …

calcium fluoride
<chemical> Calcium fluoride. Occurring in nature as the mineral fluorite or fluorspar. It is the primary source of fluorine and its compounds. Pure calcium fluoride is used as a catalyst in dehydration and dehydrogenation and is used to fluoridate drinking water. ... Chemical name: Calcium fluoride (CaF2) ... (12 Dec 1998) ...

calcium folinate
Synonym for leucovorin calcium ... <drug> The calcium salt of leucovorin (folinic acid); used to counteract toxic effects of folic acid antagonists, for the treatment of megaloblastic anaemias, and as an adjunct to cyanocobalamin in pernicious anaemia. ... Synonym: calcium folinate. ... (05 Mar 2000) ...

calcium glubionate
Calcium d-gluconate lactobionate monohydrate;a calcium replenisher. ... (05 Mar 2000) ...

calcium gluceptate
Used as a nutrient. ... Synonym: calcium glucoheptonate. ... (05 Mar 2000) ...

calcium glucoheptonate
Synonym for calcium gluceptate ... Used as a nutrient. ... Synonym: calcium glucoheptonate. ... (05 Mar 2000) ...

calcium gluconate
<chemical> D-gluconic acid calcium salt (2:1). The calcium salt of gluconic acid. The compound has a variety of uses, including its use as a calcium replenisher in hypocalcaemic states. ... Chemical name: D-Gluconic acid, calcium salt (2:1) ... (12 Dec 1998) ...

calcium glycerophosphate
A calcium and phosphorus dietary supplement. ... (05 Mar 2000) ...

calcium gout
Synonym for pseudogout ... <rheumatology> Chondrocalcinosis, chronic recurrent arthritis clinically similar to gout. ... (27 Sep 1997) ...

calcium group
The metals of the alkaline earths: beryllium, magnesium, calcium, strontium, barium, and radium. ... (05 Mar 2000) ...

calcium hippurate
Said to be a solvent of uratic gravel and calculi. ... (05 Mar 2000) ...

calcium hydroxide
<chemical> Calcium hydroxide (ca(oh)2). A white powder that has many therapeutic uses. Because of its ability to stimulate mineralization, it is found in many dental formulations. ... Chemical name: Calcium hydroxide (Ca(OH)2) ... (12 Dec 1998) ...

calcium hydroxy apatite
<radiology> All calcification in soft tissues is hydroxyapatite, except cartilage (chondrocalcinosis): calcium pyrophosphate see also: Milwaukee shoulder ... (12 Dec 1998) ...

calcium hypophosphite
Has been used for rickets and impaired nutrition. ... (05 Mar 2000) ...

calcium iodate
Used as a dusting powder and, in lotion and ointment, as an antiseptic and deodorant. ... (05 Mar 2000) ...

calcium iodobehenate
A calcium salt, (C21H42ICOO)2Ca, formerly used to meet the indications of the ordinary iodides. ... (05 Mar 2000) ...

calcium ipodate
Calcium salt of 3-[(dimethylaminomethylene)amino]-2,4,6-triiodohydrocinnamic acid;a radiopaque medium used in cholangiography and cholecystography. ... (05 Mar 2000) ...

calcium isotopes
Stable calcium atoms that have the same atomic number as the element calcium, but differ in atomic weight. Ca-42-44, 46, and 48 are stable calcium isotopes. ... (12 Dec 1998) ...

calcium lactate
Used as a calcium replenisher. ... (05 Mar 2000) ...