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

lobules of thyroid gland
The subdivisions of the lobes, consisting of incompletely separated, irregular groups of thyroid follicles (20 to 40 in number) bound together by delicate connective tissue. ... Synonym: lobuli glandulae thyroideae. ... (05 Mar 2000) ...

lobulet
Lobulette ... A very small lobule or one of the smaller subdivisions of a lobule. ... (05 Mar 2000) ...

lobuli epididymidis
Synonym for lobules of epididymis ... The coiled portion of the efferent ductules that constitute the head of the epididymis; these join the ductus epididymidis. ... Synonym: lobuli epididymidis, coni epididymidis, coni vasculosi, Haller's cones, vascular cones. ... (05 Mar 2000) ...

lobuli glandulae mammariae
Synonym for lobules of mammary gland ... Subdivisions of the lobes of the mammary gland. ... Synonym: lobuli glandulae mammariae. ... (05 Mar 2000) ...

lobuli glandulae thyroideae
Synonym for lobules of thyroid gland ... The subdivisions of the lobes, consisting of incompletely separated, irregular groups of thyroid follicles (20 to 40 in number) bound together by delicate connective tissue. ... Synonym: lobuli glandulae thyroideae. ... (05 Mar 2000) ...

lobuli testis
Synonym for lobules of testis ... The subdivisions of the parenchyma of the testis formed by delicate fibrous septa that pass inward from the tunica albuginea to converge at the mediastinum testis. ... Synonym: lobuli testis. ... (05 Mar 2000) ...

lobuli thymi
Synonym for lobules of thymus ... Areas of thymic tissue 0.5 to 2 mm in diameter with a cortex and medulla. ... Synonym: lobuli thymi. ... (05 Mar 2000) ...

lobulus
Synonym: lobule. ... Origin: Mod. L. Dim. Of lobus, lobe ... (05 Mar 2000) ...

lobulus auriculae
Synonym for ear lobe ... The lowest part of the auricle; it consists of fat and fibrous tissue not reinforced by the auricular cartilage. ... Synonym: lobulus auriculae, lobule of auricle. ... (05 Mar 2000) ...

lobulus biventer
Synonym for biventer lobule ... A lobule on the undersurface of each cerebellar hemisphere, divided by a curved sulcus into a lateral and medial portion; it corresponds to the pyramid of the vermis. ... Synonym: lobulus biventer, biventral lobule, cuneiform lobe, lobulus biventralis, lobulus cuneiformis. ... (05 Mar 2000) ...

lobulus biventralis
Synonym for biventer lobule ... A lobule on the undersurface of each cerebellar hemisphere, divided by a curved sulcus into a lateral and medial portion; it corresponds to the pyramid of the vermis. ... Synonym: lobulus biventer, biventral lobule, cuneiform lobe, lobulus biventralis, lobulus cuneiformis. ... (05 Mar 2000) ...

lobulus centralis cerebelli
Synonym for central lobule of cerebellum ... A division of the superior vermis of the cerebellum between the lingula and the monticulus. ... Synonym: lobulus centralis cerebelli, central lobule. ... (05 Mar 2000) ...

lobulus clivi
Synonym for declive ... The posterior sloping portion of the monticulus of the vermis of the cerebellum; vermal lobule caudal to the primary fissure. ... Synonym: declivis, lobulus clivi. ... Origin: L. Declivis, sloping downward, fr. Clivus, a slope ... (05 Mar 2000) ...

lobulus corticalis renalis
Synonym for cortical lobules of kidney ... One of the subdivisions of the kidney, consisting of a medullary ray and that portion of the convoluted port (renal corpuscles and convoluted tubules) associated with its collecting duct. ... Synonym: lobulus corticalis renalis, renal cortical lobule, renculus, reniculus, renunculus. ... (05 Mar 2000) ...

lobulus culminis
Synonym for culmen ... The anterior prominent portion of the monticulus of the vermis of the cerebellum; vermal lobule rostral to the primary fissure. ... Synonym: lobulus culminis. ... Origin: L. Summit ... (05 Mar 2000) ...

lobulus cuneiformis
Synonym for biventer lobule ... A lobule on the undersurface of each cerebellar hemisphere, divided by a curved sulcus into a lateral and medial portion; it corresponds to the pyramid of the vermis. ... Synonym: lobulus biventer, biventral lobule, cuneiform lobe, lobulus biventralis, lobulus cuneiformis. ... (05 Mar 2000) ...

lobulus folii
The part of the superior vermis of the cerebellum lying immediately behind the posterior superior fissure and caudal to the lobulus clivi. ... (05 Mar 2000) ...

lobulus fusiformis
Synonym for fusiform gyrus ... An extremely long convolution extending lengthwise over the inferior aspect of the temporal and occipital lobes, demarcated medially by the collateral sulcus from the lingual gyrus and the anterior part of the parahippocampal gyrus, laterally by the inferior temporal sulcus from the inferior temporal gyrus. ... Synonym: …

lobulus gracilis
Synonym for gracile lobule ... The anterior portion of the posteroinferior lobule of the cerebellum, the posterior portion being the semilunar lobule inferior; the two correspond to the tuber of the vermis. ... Synonym: lobulus gracilis, slender lobule. ... (05 Mar 2000) ...

lobulus hepatis
Synonym for hepatic lobule ... The conceptual polygonal histologic unit of the liver consisting of masses of liver cells arranged around a central vein, a terminal branch of one of the hepatic veins; at the periphery are located preterminal and terminal branches of the portal vein, hepatic artery, and bile duct, hepatic lobules have anatomical reali …

lobulus paracentralis
Synonym for paracentral lobule ... A division of the medial aspect of the cerebral cortex, lying above the singulate sulcus and bounded by the precentral sulcus in front and the marginal part of the cingulate sulcus behind. ... Synonym: lobulus paracentralis. ... (05 Mar 2000) ...

lobulus parietalis inferior
Synonym for inferior parietal lobule ... The area of the parietal lobe of the cerebrum lying below the interparietal sulcus; it contains the angular and the supramarginal gyri. ... Synonym: lobulus parietalis inferior, inferior parietal gyrus. ... (05 Mar 2000) ...

lobulus parietalis superior
Synonym for superior parietal lobule ... The area of the convex surface of the parietal lobe of the cerebrum lying between the longitudinal fissure and the interparietal sulcus behind the posterior central gyrus; it is continuous with the precuneus on the medial aspect of the hemisphere. ... Synonym: lobulus parietalis superior, superior parietal gyr …

lobulus quadrangularis
Synonym for quadrangular lobule ... The main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis. ... Synonym: lobulus quadrangularis, lobus quadrat …

lobulus quadratus
Synonym for quadrangular lobule ... The main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis. ... Synonym: lobulus quadrangularis, lobus quadrat …

lobulus semilunaris inferior
Synonym for inferior semilunar lobule ... The part of the superior surface of the cerebellar hemisphere lying behind the horizontal fissure. ... Synonym: lobulus semilunaris inferior, crus II, posterior lunate lobule. ... (05 Mar 2000) ...

lobulus semilunaris superior
Synonym for superior semilunar lobule ... The part of the superior surface of the cerebellar hemisphere lying rostral to the horizontal fissure, and adjoining the folium of the vermis. ... Synonym: lobulus semilunaris superior, anterior lunate lobule, crus I. ... (05 Mar 2000) ...

lobulus simplex
Synonym for simple lobule ... The smaller anterior part of the posterior lobe of the cerebellum, demarcated by the primary fissure from the anterior lobe rostrally and from the large caudal subdivision of the posterior lobe caudally. ... Synonym: lobulus simplex. ... (05 Mar 2000) ...

lobus
Synonym: lobe. ... Origin: LL. Fr. G. Lobos ... (05 Mar 2000) ...

lobus anterior hypophyseos
Synonym for adenohypophysis ... It consists of the distal part, intermediate part, and infundibular part. ... See: hypophysis. ... Synonym: lobus anterior hypophyseos, anterior lobe of hypophysis, glandular lobe of hypophysis, lobus glandularis hypophyseos. ... (05 Mar 2000) ...

lobus appendicularis
Synonym for Riedel's lobe ... An occasional tongue-like process extending downward from the right lobe of the liver lateral to the gallbladder; a similar process may, though rarely, extend from the left lobe. ... Synonym: lobus appendicularis, lobus linguiformis. ... (05 Mar 2000) ...

lobus azygos
Synonym for azygos lobe of lung ... A small accessory lobe sometimes found on the apex of the right lung; separated from the rest of the upper lobe by a deep groove lodging the azygos vein. ... Synonym: lobus azygos. ... (05 Mar 2000) ...

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 overlying bones of the skull. ... …

lobus dexter
Synonym for right lobe ... The right subdivision of several glands, e.g., prostate, thyroid, thymus. ... Synonym: lobus dexter. ... (05 Mar 2000) ...

lobus falciformis
cingulate gyrus ...

lobus frontalis cerebri
Synonym for frontal lobe of cerebrum ... The portion of each cerebral hemisphere anterior to the central sulcus. ... Synonym: lobus frontalis cerebri, frontal lobe. ... (05 Mar 2000) ...

lobus glandularis hypophyseos
Synonym for adenohypophysis ... It consists of the distal part, intermediate part, and infundibular part. ... See: hypophysis. ... Synonym: lobus anterior hypophyseos, anterior lobe of hypophysis, glandular lobe of hypophysis, lobus glandularis hypophyseos. ... (05 Mar 2000) ...

lobus hepatis dexter
Synonym for right lobe of liver ... The largest lobe of the liver, separated from the left lobe above and in front by the falciform ligament and from the caudate and quadrate lobes by the sulcus for the vena cava and the fossa for the gallbladder; it contains two segments, anterior and posterior. ... Synonym: lobus hepatis dexter. ... (05 Mar 2000) …

lobus hepatis sinister
Synonym for left lobe of liver ... It is separated from the right lobe above and in front by the falciform ligament, and from the quadrate and caudate lobes by the fissure for the ligamentum teres and the fissure for the ligamentum venosum; the distribution of the portal vein, hepatic artery, and bile ducts does not correspond to the gross lobar div …

lobus inferior pulmonis
Synonym for inferior lobe of lung ... It is located below and behind the oblique fissure and contains five bronchopulmonary segments: superior, medial basal, anterior basal, lateral basal, and posterior basal. ... Synonym: lobus inferior pulmonis, lower lobe of lung. ... (05 Mar 2000) ...

lobus linguiformis
Synonym for Riedel's lobe ... An occasional tongue-like process extending downward from the right lobe of the liver lateral to the gallbladder; a similar process may, though rarely, extend from the left lobe. ... Synonym: lobus appendicularis, lobus linguiformis. ... (05 Mar 2000) ...

lobus medius prostatae
Synonym for middle lobe of prostate ... The portion of the prostate lying between the urethra and the ejaculatory ducts; indistinct unless hypertrophied. ... Synonym: lobus medius prostatae, Morgagni's caruncle. ... (05 Mar 2000) ...

lobus medius pulmonis dextri
Synonym for middle lobe of right lung ... It is located anteriorly between the horizontal and oblique fissures and includes lateral and medial bronchopulmonary segments. ... Synonym: lobus medius pulmonis dextri. ... (05 Mar 2000) ...

lobus nervosus
Synonym for nervous lobe of hypophysis ... The bulbous part of the neurohypophysis attached to the hypothalamus by the infundibulum. It is composed of pituicytes, blood vessels, and terminals of nerve fibres from the supraoptic and paraventricular nuclei. ... Synonym: lobus nervosus, nervous lobe. ... (05 Mar 2000) ...

lobus occipitalis cerebri
Synonym for occipital lobe of cerebrum ... The posterior, somewhat pyramid-shaped part of each cerebral hemisphere, demarcated by no distinct surface markings on the lateral convexity of the hemisphere from the parietal and temporal lobes, but sharply delineated from the parietal lobe by the parieto-occipital sulcus on the medial surface. ... Synonym …

lobus parietalis cerebri
Synonym for parietal lobe of cerebrum ... The middle portion of each cerebral hemisphere, separated from the frontal lobe by the central sulcus, from the temporal lobe by the lateral sulcus in front and an imaginary line projected posteriorly, and from the occipital lobe only partially by the parieto-occipital sulcus on its medial aspect. ... Synonym …

lobus posterior hypophyseos
An alternate term for neurohypophysis. ... See: hypophysis. ... (05 Mar 2000) ...

lobus prostatae
Synonym for lobe of prostate ... One of the lateral lobes (right or left) or the middle lobe or isthmus of the prostate; in the adult the lobes are ill-defined. ... Synonym: lobus prostatae. ... (05 Mar 2000) ...

lobus quadratus
Synonym for quadrangular lobule ... The main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis. ... Synonym: lobulus quadrangularis, lobus quadrat …

lobus renalis
Synonym for renal lobe ... One of the subdivisions of the kidney, consisting of a renal pyramid and the cortical tissue associated with it. ... Synonym: lobus renalis. ... (05 Mar 2000) ...

lobus sinister
Synonym for left lobe ... The left subdivision of several glands, e.g., prostate, thyroid, thymus. ... Synonym: lobus sinister. ... (05 Mar 2000) ...

lobus superior pulmonis
Synonym for superior lobe of lung ... The lobe of the right lung that lies above the oblique and horizontal fissures and includes the apical, posterior and anterior bronchopulmonary segments; in the left lung, the lobe lies above the oblique fissure and contains the apicoposterior, anterior, superior lingular and inferior lingular segments. ... Synon …

lobus temporalis
Synonym for temporal lobe ... A lobe of the brain which is located laterally and below the cerebrum. Contains auditory and receptive areas. ... (27 Sep 1997) ...

LOCA
<abbreviation> Low osmolar contrast agent. ... (05 Mar 2000) ...

local
Restricted to or pertaining to one spot or part, not general. ... Origin: L. Localis ... (18 Nov 1997) ...

local anaemia
Anaemia resulting from a decreased supply of blood to a part, as in the occlusion of a vessel. ... (05 Mar 2000) ...

local anaesthesia
The use of a local anaesthetic (usually injected into the tissue) results in a small region of anaesthesia (numbness). Lidocaine (Xylocaine) or (Marcaine) are commonly used. ... Origin: Gr. Aisthesis = sensation ... (27 Sep 1997) ...

local anaesthetic
The use of a local anaesthetic (usually injected into the tissue) results in a small region of anaesthesia (numbness). Lidocaine (Xylocaine) or (Marcaine) are commonly used. ... (27 Sep 1997) ...

local anaesthetic reaction
A toxic reaction due to absorption of local anaesthetic drug during regional anaesthesia, ranging from drowsiness to convulsions and cardiovascular collapse. ... (05 Mar 2000) ...

local anaesthetics
Drugs used for the interruption of the nerve transmission of pain sensations. They act at the site of application to prevent perception of pain; examples include procaine and lidocaine. ... (05 Mar 2000) ...

local anaphylaxis
The immediate, transient kind of response that follows the injection of antigen (allergen) into the skin of a sensitised individual and is limited to the area surrounding the site of inoculation. ... See: skin test. ... (05 Mar 2000) ...

local area networks
Communications networks connecting various hardware devices together within or between buildings by means of a continuous cable or voice data telephone system. ... (12 Dec 1998) ...

local asphyxia
Stagnation of the circulation, sometimes resulting in local gangrene, especially of the fingers; one of the symptoms usually associated with Raynaud's disease. ... (05 Mar 2000) ...

local bloodletting
Removing blood from the smaller vessels, formerly by a cupping glass or by leeching. ... (05 Mar 2000) ...

local circuit theory
<physiology> A generally accepted model for neuronal conduction, by which depolarisation of a small region of a neuronal plasma membrane produces transmembrane currents in the neighbouring regions, tending to depolarise them. As the sodium channels are voltage gated, the depolarisation causes further channels to open, thus propagating the act …

local death
Death of a part of the body or of a tissue by necrosis. ... (05 Mar 2000) ...

local epilepsy
Synonym for focal epilepsy ... Epilepsy of various aetiologies characterised by focal seizures or secondarily generalised tonic-clonic seizures. Ictal symptoms are often related to the brain region where the seizure begins focally. ... Synonym: cortical epilepsy, local epilepsy, partial epilepsy. ... (05 Mar 2000) ...

local excitatory state
Increased irritability of a nerve fibre or muscle fibre which is produced by an ineffective electrical stimulus; summation of the stimuli may occur, resulting in a propagated impulse if two or more subliminal stimuli are applied in rapid succession. ... (05 Mar 2000) ...

local flap
A flap transferred to an adjacent area. ... (05 Mar 2000) ...

local glomerulonephritis
Synonym for segmental glomerulonephritis ... Glomerulonephritis affecting only part of a glomerulus or glomeruli. ... Synonym: local glomerulonephritis. ... (05 Mar 2000) ...

local hormone
A metabolic product secreted by one set of cells that affects the function of nearby cells; an autacoid; e.g., prostaglandins and neurotransmitters. ... (05 Mar 2000) ...

local immunity
A natural or acquired immunity to certain infectious agents, as manifested by an organ or a tissue, as a whole or in part. ... (05 Mar 2000) ...

local nerve block
Infiltration of a local anesthetic around a peripheral nerve so as to produce anesthesia in the area supplied by the nerve. ... (16 Dec 1997) ...

local reaction
Synonym for focal reaction ... A reaction which occurs at the point of entrance of an infecting organism or of an injection, as in the Arthus phenomenon. ... Synonym: local reaction. ... (05 Mar 2000) ...

local sign
<clinical sign> The characteristic of a sensation that permits distinguishing it from another sensation by locating its position in space. ... (05 Mar 2000) ...

local stimulant
A stimulant whose action is confined to the part to which it is applied. ... (05 Mar 2000) ...

local symptom
A symptom of limited extent, caused by disease of a particular organ or part. ... (05 Mar 2000) ...

local syncope
Limited numbness in a part, especially of the fingers; one of the symptoms, usually associated with local asphyxia, of Raynaud's disease. ... (05 Mar 2000) ...

local tetanus
The most benign type of tetanus; the muscles in close proximity to an infected wound develop persistent involuntary contractions, often with transient, intense superimposed spasms triggered by various stimuli. The more distal upper extremity muscles are most often affected; gradual but complete recovery is typical. ... (05 Mar 2000) ...

local therapy
Treatment that affects cells in the tumour and the area close to it. ... (16 Dec 1997) ...

local tic
A tic of very limited extent, as the winking of an eye or a twitch of a finger. ... (05 Mar 2000) ...

local treatment
Treatment that affects the tumour and the area close to it. ... (12 Dec 1998) ...

localisation
1. The determination of the site or place of any process or lesion. ... 2. Restriction to a circumscribed or limited area. ... 3. Prelocalisation. ... (18 Nov 1997) ...

localise
<molecular biology> Determination of the original position chromosome. ... (09 Oct 1997) ...

localised
<oncology> A disease found only in the original site, with no spread to other organs. ... (06 Oct 1997) ...

localised cancer
A cancer still confined to its site of origin. ... (09 Oct 1997) ...

localised nodular tenosynovitis
Synonym for giant cell tumour of tendon sheath ... A nodule, possibly inflammatory in nature, arising commonly from the flexor sheath of the fingers and thumb; composed of fibrous tissue, lipid-and haemosiderin-containing macrophages, and multinucleated giant cells. ... Synonym: localised nodular tenosynovitis. ... (05 Mar 2000) ...

localised osteitis fibrosa
Synonym for monostotic fibrous dysplasia ... Fibrous dysplasia of a single bone. ... Synonym: localised osteitis fibrosa, osteitis fibrosa circumscripta. ... (05 Mar 2000) ...

localised peritonitis
Peritonitis confined to a demarcated region of the peritoneal cavity. ... Synonym: circumscribed peritonitis. ... (05 Mar 2000) ...

localised scleroderma
Synonym for morphea ... A skin lesion that is characterised by the presence of localised, indurated, slightly depressed areas of thickened dermal tissue that may be white or yellow in colour and surrounded by a pink or purplish halo. ... See: in cutaneus scleroderma. ... (27 Sep 1997) ...

localised small bowel disease
<radiology> Crohn's, tumour (including lymphoma), bleed/oedema ... (12 Dec 1998) ...

locality
Origin: L. Localitas: cf. F. Localite. ... 1. The state, or condition, of belonging to a definite place, or of being contained within definite limits. 'It is thought that the soul and angels are devoid of quantity and dimension, and that they have nothing to do with grosser locality.' (Glanvill) ... 2. Position; situation; a place; a spot; especially …

localization agnosia
The inability to recognise the area where the skin is touched. ... (05 Mar 2000) ...

localization related epilepsy
Synonym for myoclonus epilepsy ... A clinically diverse group of epilepsy syndromes, some benign, some progressive. Many are hereditary with mendelian and nonmendelian mitochondrial inheritance. All are characterised by the occurrence of myoclonus, which may be limited or predominate in the condition. Specific syndromes include cherry red spot myocl …

localizing electrode
Synonym for active electrode ... A small electrode whose exciting effect is used to stimulate or record potentials from a localised area. ... Synonym: exciting electrode, localizing electrode, therapeutic electrode. ... (05 Mar 2000) ...

localizing symptom
A symptom indicating clearly the seat of the morbid process. ... (05 Mar 2000) ...

locant
A number or letter preceding a substituent name in the name of a complex chemical that specifies the position (location) of the substituent on the parent molecule; e.g., 5 in 5-methyluridine, S in S-adenosylmethionine. ... (05 Mar 2000) ...

location directories and signs
Directory signs or listings of designated areas within or without a facility. ... (12 Dec 1998) ...

locator
An instrument or apparatus for finding the position of a foreign object in tissue. ... (05 Mar 2000) ...

lochia
<obstetrics> The vaginal discharge that takes place during the first week or two after childbirth. ... Origin: Gr. Lochia ... (18 Nov 1997) ...