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

catheter
<apparatus> A tubular, flexible, surgical instrument for withdrawing fluids from (or introducing fluids into) a cavity of the body, especially one for introduction into the bladder through the urethra for the withdraw of urine. ... Origin: Gr. Katheter ... (18 Nov 1997) ...

catheter a demeure
An obsolete term for a catheter that is retained for a considerable period in the urethra. ... Origin: Fr. Demeurer, to dwell ... (05 Mar 2000) ...

catheter ablation
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (dc-shock) or alternating current at radiofrequencies (usually 750 khz). The technique is used most often to ablate the av junction and/or accessory pathways in order to interrupt av conduction an …

catheter coude
Synonym for elbowed catheter ... A catheter with an angular bend near the beak; used to rise over prostatic obstruction. ... Synonym: catheter coude, prostatic catheter. ... (05 Mar 2000) ...

catheter fever
Synonym for urinary fever ... An elevation of temperature, usually slight and transitory, following catheterization of the urethra, or the passage of blood clots, gravel, or a calculus. ... Synonym: catheter fever, urethral fever. ... (05 Mar 2000) ...

catheter gauge
A metal plate with holes of graduated diameter used to determine the size of a catheter. ... (05 Mar 2000) ...

catheter guide
A flexible metallic wire or thin sound over which a catheter is passed to advance it into its proper position, as in a blood vessel or the urethra. ... See: stylet. ... (05 Mar 2000) ...

catheterisation
<procedure> The placement of a catheter in a specific anatomic area most commonly for the purpose of treatment or diagnosis. ... (27 Sep 1997) ...

catheterise
To pass a catheter. ... (05 Mar 2000) ...

catheterization
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from intubation in that the tube here is used to restore or maintain patency in obstructions. ... (12 Dec 1998) ...

catheterization, central venous
Placement of an intravenous catheter in the subclavian, jugular, or other central vein for central venous pressure determination, chemotherapy, haemodialysis, or hyperalimentation. ... (12 Dec 1998) ...

catheterization, peripheral
Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes. ... (12 Dec 1998) ...

catheterization, swan-ganz
Placement of a flow-directed catheter (developed by cardiologists swan and ganz) for measuring pulmonary arterial pressures. The catheter is introduced into the venous system via the basilic, internal jugular, or subclavian vein, and is guided by blood flow into the superior vena cava, the right atrium and ventricle, and into the pulmonary artery.< …

catheterostat
A stand for holding catheters. ... Origin: catheter + G. Statos, standing ... (05 Mar 2000) ...

catheters, indwelling
Catheters designed to be left within an organ or passage for an extended period of time. ... (12 Dec 1998) ...

cathexis
Attachment, conscious or unconscious, of emotional feeling and significance to an idea, object or most commonly a person. ... (12 Dec 1998) ...

cathodal
Of, pertaining to, or emanating from a cathode. ... Synonym: cathodic. ... (05 Mar 2000) ...

cathodal closure contraction
An obsolete term for the momentary contraction of a muscle under the influence of the negative pole when an electrical circuit is established. ... (05 Mar 2000) ...

cathodal closure tetanus
An obsolete term for a tetanic muscular contraction occurring during the time the circuit is closed, the current then running, while the negative pole is applied. ... (05 Mar 2000) ...

cathodal duration tetanus
An obsolete term for a tetanic contraction occurring on application of the cathode or negative pole, while the circuit is closed. ... (05 Mar 2000) ...

cathodal opening clonus
An obsolete term for a clonus produced near a cathode when the flow of current is stopped. ... (05 Mar 2000) ...

cathodal opening contraction
An obsolete term for the momentary contraction of a muscle under the influence of the negative pole when the circuit is broken. ... (05 Mar 2000) ...

cathodal opening tetanus
An obsolete term for a tonic contraction in a muscle, to which the cathode is applied; when the circuit is opened, the contraction is suddenly interrupted. ... (05 Mar 2000) ...

cathode
<chemistry, physics> The electrode in an electrochemical cell toward which cations are drawn and where reduction occurs. ... The negatively charged electrode in a vacuum tube. ... (16 Mar 1998) ...

cathode ray
<physics> Electrons emitted from the surface of a cathode in a vacuum tube. ... (16 Mar 1998) ...

cathode ray tube
An evacuated tube containing a beam of electrons which can be deflected to various parts of a fluorescent screen; used in the cathode ray oscilloscope. ... (05 Mar 2000) ...

cathode rays
A stream of electrons emitted from the negative electrode (cathode) in a Crookes tube; their bombardment of the anode or the glass wall of the tube gives rise to X-ray's. ... (05 Mar 2000) ...

cathodic
Synonym for cathodal ... Of, pertaining to, or emanating from a cathode. ... Synonym: cathodic. ... (05 Mar 2000) ...

cathodic protection
<chemistry> The attachment of an active metal to a system to protect the system from corrosion. The active metal serves as the anode, making the metal in the system a cathode. ... (16 Mar 1998) ...

catholicism
The christian faith, practice, or system of the catholic church, specifically the roman catholic, the christian church that is characterised by a hierarchic structure of bishops and priests in which doctrinal and disciplinary authority are dependent upon apostolic succession, with the pope as head of the episcopal college. ... (12 Dec 1998) ...

catholysis
Electrolysis with a cathode needle. ... (05 Mar 2000) ...

cation
<chemistry> A positively-charged ion. ... (16 Mar 1998) ...

cation exchange
The process by which a cation in a liquid phase exchanges with another cation present as the counter-ion of a negatively charged solid polymer (cation exchanger). A cation-exchange reaction in removal of the Na+ of a sodium chloride solution is RSO3-H+ + Na+ &rarr; RSO3-Na+ + H+ (R is the polymer, RSO3- is the cation exchanger); if this is comb …

cation exchange resins
High molecular weight insoluble polymers which contain functional cationic groups that are capable of undergoing exchange reactions; used in various types of chromatography; also to treat hyperkalaemia. ... (12 Dec 1998) ...

cation exchanger
An insoluble solid (usually a polystyrene or a polysaccharide) that has negatively charged radicals attached to it (e.g., -COO-, -SO3-), which can attract and hold cations that pass by in a moving solution if these are more attracted to the acid groups than the counter ion present. ... (05 Mar 2000) ...

cation exhange resin
<chemistry> An insoluble resin with fixed anionic groups which is used in chromatography to separate cationic molecules. ... (16 Mar 1998) ...

cation-anion difference
Synonym for anion gap ... <biochemistry> The difference between the sum of the measured cations and anions in the plasma or serum calculated as follows: (Na + K) -(Cl + HCO3) = &lt; 20 mmol/l. Elevated values may occur in diabetic or lactic acidosis; normal or low values occur in bicarbonate-losing metabolic acidoses. ... Synonym: cation-an …

cation-exchange resin
See: cation exchange, cation exchanger. ... (05 Mar 2000) ...

cationic
Referring to positively charged ions and their properties. ... (05 Mar 2000) ...

cationic detergents
Detergent's, such as the amine salts or quaternary ammonium or pyridinium compounds of long-chain fatty acids, that have positively charged groups attached to the larger hydrophobic portions. ... (05 Mar 2000) ...

cationic protein
<biochemistry> Proteins of azurophil granules of neutrophils, rich in arginine. A chymotrypsin like protease found in azurophil granules is also very cationic as is cathepsin G and neutrophil elastase. ... Eosinophil cationic protein (21 kD) is particularly important because it damages schistosomula in vitro. ... (16 Mar 1998) ...

cationised ferritin
<chemical> Ferritin, treated with dimethyl propanediamine and used to show, in the electron microscope, the distribution of negative charge on the surface of a cell. ... The amount of cationic ferritin binding is very approximately related to the surface charge. ... (16 Mar 1998) ...

cationogen
A substance that gives rise to positively charged ions. ... (05 Mar 2000) ...

cations
Postively charged atoms, radicals or groups of atoms which travel to the cathode or negative pole during electrolysis. ... (12 Dec 1998) ...

cations, divalent
Positively charged atoms, radicals or groups of atoms with a valence of plus 2, which travel to the cathode or negative pole during electrolysis. ... (12 Dec 1998) ...

cations, monovalent
Positively charged atoms, radicals or group of atoms with a valence of plus 1, which travel to the cathode or negative pole during electrolysis. ... (12 Dec 1998) ...

catkin
<plant biology> A spike in which the flowers are unisexual and without conspicuous perianth. ... (16 Mar 1998) ...

catling
A long, sharp-pointed, double-edged knife used in amputations. ... (05 Mar 2000) ...

catnip
Synonym for cataria ... The dried flowering tops of Nepeta cataria (family Labiatae); an emmenagogue and antispasmodic; also reported to produce psychic effects. ... Synonym: catnep, catnip. ... Origin: L. Cattus, male cat (post-class) ... (05 Mar 2000) ...

catochus
The trancelike phase of catalepsy in which the patient is conscious but cannot move or speak. ... Origin: G. Katoche, epilepsy (Galen), fr. Katecho, to hold fast ... (05 Mar 2000) ...

catoptric
Relating to reflected light. ... Origin: G. Katoptron, mirror ... (05 Mar 2000) ...

catroxase
<enzyme> Metalloprotease from crotalus atrox venom with alpha- and beta-fibrinogenase activity ... Registry number: EC 3.4.24.- ... (26 Jun 1999) ...

cats
The domestic cat, felis catus, of the carnivore family felidae, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of africa and extreme southwestern asia. Though probably present in towns in palestine as long ago as 7000 years, actual domestication occurred in egypt about 4000 years ago. ... (12 Dec 1998) …

Cattell Infant Intelligence Scale
A standardised scale for assessment of the cognitive development of infants between the ages of 3 and 30 months. ... (05 Mar 2000) ...

cattle
Domesticated bovine animals usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labour. ... (12 Dec 1998) ...

cattle diseases
Diseases of domestic cattle of the genus bos. It includes diseases of cows, yaks, and zebus. ... (12 Dec 1998) ...

cattle plague
Synonym for rinderpest ... A viral disease of cloven-hoofed animals caused by morbillivirus. It may be acute, subacute, or chronic with the major lesions characterised by inflammation and ulceration of the entire digestive tract. ... (12 Dec 1998) ...

cattle plague virus
Synonym for rinderpest virus ... A species of morbillivirus causing cattle plague, a disease with high mortality. Sheep, goats, pigs, and other animals of the order artiodactyla can also be infected. ... (12 Dec 1998) ...

cattle warts
Synonym for infectious papilloma of cattle ... Single or multiple rough nodules on the skin and mucous membranes caused by a papillomavirus; in young cattle, which are most susceptible, they are most numerous on the head, neck, and shoulders; in cows they usually affect the udder and teats. ... Synonym: cattle warts. ... (05 Mar 2000) ...

Catu virus
An arbovirus of the genus Bunyavirus, of the family Bunyaviridae; an agent of bunyavirus encephalitis. ... (05 Mar 2000) ...

caucasoid race
A major racial group distinguished by classification according to physical features. This group, also called europoid, centres around the mediterranean sea but includes central and northern europe. They are indigenous also to northern africa, southwestern asia, and india. ... (12 Dec 1998) ...

cauda
Synonym: tail. ... Origin: L. A tail ... (05 Mar 2000) ...

cauda epididymidis
Synonym for tail of epididymis ... The inferior part of the epididymis that leads into the ductus deferens; part of the reservoir of spermatozoa. ... Synonym: cauda epididymidis, cauda epididymis, globus minor. ... (05 Mar 2000) ...

cauda epididymis
Synonym for tail of epididymis ... The inferior part of the epididymis that leads into the ductus deferens; part of the reservoir of spermatozoa. ... Synonym: cauda epididymidis, cauda epididymis, globus minor. ... (05 Mar 2000) ...

cauda equina
<anatomy> A bundle of spinal nerve roots which arise from the termination of the spinal cord proper, it comprises the roots of all the spinal nerves below the first lumbar (L1). ... (16 Mar 1998) ...

cauda equina syndrome
<syndrome> A clinical syndrome characterised by dull pain in the lower back and upper buttock region, analgesia in the buttocks, genitalia (or thigh), accompanied by a disturbance of bowel and bladder function. ... (27 Sep 1997) ...

cauda fasciae dentatae
Synonym for uncus band of Giacomini ... A slender whitish band, the attenuated anterior continuation of the dentate gyrus (fascia dentata), crossing transversally the surface of the recurved part of the uncus gyri parahippocampalis. ... Synonym: band of Giacomini, cauda fasciae dentatae, frenulum of Giacomini, tail of dentate gyrus. ... (05 Mar 2000)< …

cauda helicis
Synonym for tail of helix ... A flattened process terminating the cartilage of the helix of the ear, posteriorly and inferiorly. ... Synonym: cauda helicis. ... (05 Mar 2000) ...

cauda nuclei caudati
Synonym for tail of caudate nucleus ... The elongated posterior extension of the caudate nucleus that parallels the body and inferior horn of the lateral ventricle. ... Synonym: cauda nuclei caudati, cauda striati. ... (05 Mar 2000) ...

cauda pancreatis
Synonym for tail of pancreas ... The left extremity of the pancreas within the lienorenal ligament. ... Synonym: cauda pancreatis. ... (05 Mar 2000) ...

cauda striati
Synonym for tail of caudate nucleus ... The elongated posterior extension of the caudate nucleus that parallels the body and inferior horn of the lateral ventricle. ... Synonym: cauda nuclei caudati, cauda striati. ... (05 Mar 2000) ...

caudad
1. In a direction toward the tail. ... 2. Situated nearer the tail in relation to a specific reference point; opposite of craniad. ... See: inferior. ... (05 Mar 2000) ...

caudal
<anatomy> Denoting a position more toward the cauda or tail, than some specified point of reference, same as inferior, in human anatomy. ... (18 Nov 1997) ...

caudal anaesthesia
Regional anaesthesia by injection of local anaesthetic solution into the epidural space via the sacral hiatus. ... (05 Mar 2000) ...

caudal canal
The space occupied by the sacral extension of the epidural space. ... (05 Mar 2000) ...

caudal flexure
The bend in the lumbosacral region of the embryo. ... Synonym: sacral flexure. ... (05 Mar 2000) ...

caudal ligament
Synonym for caudal retinaculum ... Fibrous bands, remnants of the notochord, that extend from the skin to the coccyx, forming the coccygeal foveola. ... Synonym: retinaculum caudale, caudal ligament, ligamentum caudale. ... (05 Mar 2000) ...

caudal neuropore
The temporary opening at the extreme caudal end of the neural tube in early embryos; closes at the 25th somite stage. ... Synonym: posterior neuropore. ... (05 Mar 2000) ...

caudal neurosecretory system
urohypophysis ...

caudal pancreatic artery
Synonym for artery of the pancreatic tail ... Origin, splenic artery near the left gastroepiploic; distribution, the tail of the pancreas; anastomoses, with other pancreatic arteries. ... Synonym: arteria caudae pancreatis, caudal pancreatic artery. ... (05 Mar 2000) ...

caudal pharyngeal complex
The ultimobranchial body associated with the embryonic fourth and transitory fifth pharyngeal pouches. ... (05 Mar 2000) ...

caudal retinaculum
Fibrous bands, remnants of the notochord, that extend from the skin to the coccyx, forming the coccygeal foveola. ... Synonym: retinaculum caudale, caudal ligament, ligamentum caudale. ... (05 Mar 2000) ...

caudal sheath
A group of microtubules arranged cylindrically around the caudal pole of the nucleus in a developing spermatozoon. ... (05 Mar 2000) ...

caudal transtentorial herniation
Displacement of medial temporal structures through the incisura, with or without rostrocaudal brainstem shift. ... Synonym: uncal herniation. ... (05 Mar 2000) ...

caudal transverse fissure
Synonym for porta hepatis ... A transverse fissure on the visceral surface of the liver between the caudate and quadrate lobes, lodging the portal vein, hepatic artery, hepatic nerve plexus, hepatic ducts, and lymphatic vessels. ... Synonym: caudal transverse fissure, portal fissure. ... (05 Mar 2000) ...

caudal vertebrae
The vertebrae that form the skeleton of the tail. ... (05 Mar 2000) ...

caudalis
caudal, caudal ...

caudate
Having a narrow tail-like appendage. ... (09 Oct 1997) ...

caudate branches
Branches of transverse part of left branch of portal vein distributed to the caudate lobe before the vein enters the liver. ... Synonym: rami caudati. ... (05 Mar 2000) ...

caudate lobe
Synonym for lobus caudatus ... A small lobe of the liver situated posteriorly between the sulcus for the vena cava and the fissure for the ligamentum venosum. ... Synonym: caudate lobe, Spigelius' lobe. ... Lobi cerebri, the major divisions of the cerebral hemisphere; they include the frontal, parietal, temporal, and occipital lobes, named for the ove …

caudate nucleus
Elongated gray mass of the neostriatum located adjacent to the lateral ventricle of the brain. ... (12 Dec 1998) ...

caudate process
A narrow band of hepatic tissue connecting the caudate and right lobes of the liver posterior to the porta hepatis. ... Synonym: processus caudatus. ... (05 Mar 2000) ...

caudatolenticular
Relating to the caudate nucleus and lenticularis. ... Synonym: caudolenticular. ... (05 Mar 2000) ...

caudatum
Synonym for caudate nucleus ... Elongated gray mass of the neostriatum located adjacent to the lateral ventricle of the brain. ... (12 Dec 1998) ...

caudex
A thick, erect trunk. ... (09 Oct 1997) ...

caudicle
<plant biology> A thread to which a pollen mass is attached. ... (16 Mar 1998) ...

caudocephalad
In a direction from the tail toward the head. ... (05 Mar 2000) ...

caudolenticular
Synonym for caudatolenticular ... Relating to the caudate nucleus and lenticularis. ... Synonym: caudolenticular. ... (05 Mar 2000) ...

caudovirales
An order comprising three families of tailed bacteriophages: myoviridae, podoviridae, and siphoviridae. ... (12 Dec 1998) ...

caul
Cowl ... 1. The amnion, either as a piece of membrane capping the baby's head at birth or the whole membrane when delivered unruptured with the baby. ... Synonym: galea, veil, velum, greater omentum. ... Origin: Gaelic, call, a veil ... (05 Mar 2000) ...