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

line of Bechterew
Synonym for band of Kaes-Bechterew ... A band of horizontal myelinated fibres in the most superficial part of the third layer of the isocortex. ... Synonym: Bechterew's band, layer of Bechterew, line of Bechterew, line of Kaes. ... (05 Mar 2000) ...

line of demarcation
A zone of inflammatory reaction separating a gangrenous area from healthy tissue. ... (05 Mar 2000) ...

line of fixation
A line joining the object (or point of fixation) with the fovea. ... (05 Mar 2000) ...

line of Gennari
A prominent white line appearing in perpendicular sections of the visual cortex (Brodmann's area 17) at about mid-thickness of the cortical gray matter, corresponding to the particularly well developed outer line of Baillarger of that cortical area, and composed largely of tangentially disposed intracortical association fibres. ... Synonym: Gennari' …

line of Kaes
Synonym for band of Kaes-Bechterew ... A band of horizontal myelinated fibres in the most superficial part of the third layer of the isocortex. ... Synonym: Bechterew's band, layer of Bechterew, line of Bechterew, line of Kaes. ... (05 Mar 2000) ...

line of occlusion
The alignment of the occluding surfaces of the teeth in the horizontal plane. ... See: occlusal plane. ... (05 Mar 2000) ...

line of vision
Synonym for visual axis ... The straight line extending from the object seen, through the centre of the pupil, to the macula lutea of the retina. ... Synonym: line of vision. ... (05 Mar 2000) ...

line pairs
A unit of resolution of radiographic screens and films or photographic films. ... (05 Mar 2000) ...

line precedence
<zoology> When two different names for the same taxon are first published in the same publication, then the one which appears on the earlier line has line precedence. Line precedence does not necessarily mean priority as well - this is determined by the action of the first reviser. ... (09 Jan 1998) ...

line spread function
A measure of the ability of a system to form sharp images; in radiology, determined by measuring the spatial density distribution on film of the X-ray image of a narrow slit in a dense metal, such as uranium; from this can be calculated the modulation transfer function. ... (05 Mar 2000) ...

line test
A test for rickets, based on observation of the lines of calcification in the growing ends of rachitic long bones in rats given vitamin D preparations under standard test conditions; used in biological assay of vitamin D by the USP. ... (05 Mar 2000) ...

line-tying
<radiobiology> Connection of field lines from the end of an open-ended device (such as a mirror system) to a conducting plate. The rigidity of field lines trapped in the plate can be transferred to the high-field region of the mirror by using a cold, moderately-dense plasma in between. Line-tying helps to stabilise against interchange instabi …

linea
Synonym for line ... 1. The course followed by anything in motion; hence, a road or route; as, the arrow descended in a curved line; the place is remote from lines of travel. ... 2. <mathematics> That which has length, but not breadth or thickness. ... 3. <geography> A circle of latitude or of longitude, as represented on a map. The equato …

linea alba
A fibrous band running vertically the entire length of the centre of the anterior abdominal wall, receiving the attachments of the oblique and transverse abdominal muscles. ... Synonym: Hunter's line, white line. ... (05 Mar 2000) ...

linea anocutanea
Synonym for pectinate line ... The line between the simple columnar epithelium of the rectum and the stratified epithelium of the anal canal. ... Synonym: linea anocutanea, anocutaneous line, dentate line. ... (05 Mar 2000) ...

linea arcuata
Synonym for arcuate line ... An arching or bow-shaped line. ... See: arcuate line of ilium, arcuate line of rectus sheath. ... Synonym: linea arcuata. ... (05 Mar 2000) ...

linea arcuata ossis ilii
Synonym for arcuate line of ilium ... The iliac portion of the linea terminalis of the bony pelvis. ... Synonym: linea arcuata ossis ilii. ... (05 Mar 2000) ...

linea aspera
A rough ridge with two pronounced lips running down the posterior surface of the shaft of the femur; the lateral lip of the linea aspera is a continuation of the gluteal tuberosity, the medial lip of the intertrochanteric line; it affords attachment to the vastus medialis, adductor longus, adductor magnus, adductor brevis, the short head of the bic …

linea axillaris anterior
Synonym for anterior axillary line ... A vertical line extending inferiorly from the anterior axillary fold. ... Synonym: linea axillaris anterior, linea preaxillaris, preaxillary line. ... (05 Mar 2000) ...

linea axillaris media
Synonym for midaxillary line ... A vertical line intersecting a point midway between the anterior and posterior axillary folds or lines. ... Synonym: linea axillaris media, linea medio-axillaris, middle axillary line. ... (05 Mar 2000) ...

linea axillaris posterior
Synonym for posterior axillary line ... A vertical line extending inferiorly from the posterior axillary fold. ... Synonym: linea axillaris posterior, linea postaxillaris, postaxillary line. ... (05 Mar 2000) ...

linea corneae senilis
Synonym for arcus cornealis ... An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. ... Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus l …

linea epiphysialis
Synonym for epiphysial line ... The line of junction of the epiphysis and diaphysis of a long bone where growth in length occurs. ... Synonym: linea epiphysialis, synchondrosis epiphyseos. ... (05 Mar 2000) ...

linea glutea
Synonym for gluteal line ... One of three rough curved lines on the outer surface of the ala of the ilium: anterior (or middle) gluteal line, inferior gluteal line, and posterior gluteal line; the two areas bounded by these give attachment to the gluteus minimus muscle below and gluteus medius above. ... Synonym: linea glutea. ... (05 Mar 2000) ...

linea glutea anterior
Anterior gluteal line. ... See: gluteal line. ... (05 Mar 2000) ...

linea glutea inferior
Inferior gluteal line. ... See: gluteal line. ... (05 Mar 2000) ...

linea glutea posterior
Posterior gluteal line. ... See: gluteal line. ... (05 Mar 2000) ...

linea intercondylaris femoris
Synonym for intercondylar line of femur ... A faint transverse ridge separating the floor of the intercondylar fossa from the popliteal surface of the femur; it affords attachment to the posterior portion of the articular capsule of the knee. ... Synonym: linea intercondylaris femoris. ... (05 Mar 2000) ...

linea intermedia cristae iliacae
Synonym for intermediate line of iliac crest ... The line on the crest of the ilium between the outer and inner lips, for origin of internal oblique muscle. ... Synonym: linea intermedia cristae iliacae. ... (05 Mar 2000) ...

linea interspinalis
Synonym for interspinal line ... Line passing through both anterior superior iliac spines indicating the interspinal plane. ... Synonym: linea interspinalis. ... (05 Mar 2000) ...

linea intertrochanterica
Synonym for intertrochanteric line ... A rough line that separates the neck and shaft of the femur anteriorly; it passes downward and medially from the greater trochanter to the lesser trochanter and continues into the medial lip of the linea aspera. ... Synonym: linea intertrochanterica, linea spiralis, spiral line. ... (05 Mar 2000) ...

linea intertubercularis
Synonym for intertubercular line ... Line passing through tubercles of both iliac crests, indicating the intertubercular plane. ... Synonym: linea intertubercularis. ... (05 Mar 2000) ...

linea mamillaris
Synonym for mamillary line ... A vertical line passing through the nipple on either side. ... Synonym: linea mamillaris, nipple line. ... (05 Mar 2000) ...

linea mediana anterior
Synonym for anterior median line ... The line of intersection of the midsagittal plane with the anterior surface of the body. ... Synonym: linea mediana anterior. ... (05 Mar 2000) ...

linea mediana posterior
Synonym for posterior median line ... The line of intersection of the midsagittal plane with the posterior surface of the body. ... Synonym: linea mediana posterior. ... (05 Mar 2000) ...

linea medio-axillaris
An alternate term for midaxillary line, midaxillary line. ... (05 Mar 2000) ...

linea medioclavicularis
Synonym for midclavicular line ... A vertical line passing through the midpoint of the clavicle. ... Synonym: linea medioclavicularis. ... (05 Mar 2000) ...

linea musculi solei
Synonym for soleal line ... A ridge which extends obliquely downward and medially across the back of the tibia from the fibular articular facet; it gives origin to the soleus muscle. ... Synonym: linea musculi solei, line for soleus muscle, linea poplitea, popliteal line. ... (05 Mar 2000) ...

linea mylohyoidea
Synonym for mylohyoid line ... A ridge on the inner surface of the mandible running from a point inferior to the mental spine upward and backward to the ramus behind the last molar tooth; it gives attachment to the mylohyoid muscle and the lowermost part of the superior constrictor of the pharynx. ... Synonym: linea mylohyoidea, internal oblique line …

linea nigra
The linea alba in pregnancy, which then becomes pigmented. ... Synonym: black line. ... (05 Mar 2000) ...

linea nuchae inferior
Synonym for inferior nuchal line ... A ridge that extends laterally from the external occipital crest toward the jugular process of the occipital bone. ... Synonym: linea nuchae inferior. ... (05 Mar 2000) ...

linea nuchae mediana
Synonym for external occipital crest ... A ridge extending from the external occipital protuberance to the border of the foramen magnum. ... Synonym: crista occipitalis externa, linea nuchae mediana. ... (05 Mar 2000) ...

linea nuchae superior
Synonym for superior nuchal line ... The ridge that extends laterally from the external occipital protuberance toward the lateral angle of the occipital bone; it gives attachment to the trapezius, sternocleidomastoid, and splenius capitis muscles. ... Synonym: linea nuchae superior. ... (05 Mar 2000) ...

linea nuchae suprema
Synonym for highest nuchal line ... A line above and parallel to the superior nuchal line on the external surface of the occipital bone; it gives attachment to the epicranial aponeurosis and occipitalis muscle. ... Synonym: linea nuchae suprema. ... (05 Mar 2000) ...

linea obliqua
Synonym for oblique line ... A diagonal, sloping or slanting line; a line which is neither parallel nor perpendiculr, neither horizonal nor vertical. ... See: oblique line of mandible, oblique line of thyroid cartilage. ... Synonym: linea obliqua. ... (05 Mar 2000) ...

linea obliqua mandibulae
Synonym for oblique line of mandible ... The line on the external surface of the mandible that extends from the mental tubercle to the ramus and separates the alveolar and basilar parts of the bone. ... Synonym: linea obliqua mandibulae. ... (05 Mar 2000) ...

linea parasternalis
Synonym for parasternal line ... A vertical line equidistant from the sternal and midclavicular lines. ... Synonym: linea parasternalis, costoclavicular line. ... (05 Mar 2000) ...

linea paravertebralis
Synonym for paravertebral line ... A vertical line corresponding to the tips of the transverse processes of the vertebrae. ... Synonym: linea paravertebralis. ... (05 Mar 2000) ...

linea pectinea
Synonym for pectineal line ... A ridge running down the posterior surface of the shaft of the femur from the lesser trochanter to which the pectineus muscle attaches; continuous superiorly with intertrochanteric line and inferiorly with the medial lip of the linea aspera. ... Synonym: linea pectinea. ... (05 Mar 2000) ...

linea poplitea
Synonym for soleal line ... A ridge which extends obliquely downward and medially across the back of the tibia from the fibular articular facet; it gives origin to the soleus muscle. ... Synonym: linea musculi solei, line for soleus muscle, linea poplitea, popliteal line. ... (05 Mar 2000) ...

linea postaxillaris
An alternate term for posterior axillary line, posterior axillary line. ... (05 Mar 2000) ...

linea preaxillaris
An alternate term for anterior axillary line, anterior axillary line. ... (05 Mar 2000) ...

linea scapularis
Synonym for scapular line ... A vertical line passing through the inferior angle of the scapula. ... Synonym: linea scapularis. ... (05 Mar 2000) ...

linea semicircularis
Synonym for arcuate line of rectus sheath ... A crescentic line, not always clearly defined, which marks the lower limit of the posterior layer of the sheath of the rectus abdominis muscle. ... Synonym: linea arcuata vaginae musculi recti abdominis, Douglas' line, linea semicircularis, semicircular line. ... (05 Mar 2000) ...

linea semilunaris
The slight groove in the external abdominal wall parallel to the lateral edge of the rectus sheath. ... Synonym: semilunar line, Spigelius' line. ... (05 Mar 2000) ...

linea spiralis
Synonym for intertrochanteric line ... A rough line that separates the neck and shaft of the femur anteriorly; it passes downward and medially from the greater trochanter to the lesser trochanter and continues into the medial lip of the linea aspera. ... Synonym: linea intertrochanterica, linea spiralis, spiral line. ... (05 Mar 2000) ...

linea splendens
A thickened band of pia mater along the midline of the anterior surface of the spinal cord. ... Synonym: Haller's line. ... (05 Mar 2000) ...

linea sternalis
Synonym for sternal line ... A vertical line corresponding to the lateral margin of the sternum. ... Synonym: linea sternalis. ... (05 Mar 2000) ...

linea subcostalis
Synonym for subcostal line ... A transverse line transecting the inferiormost border of the thoracic cage, indicating the subcostal plane. ... See: subcostal plane. ... Synonym: linea subcostalis. ... (05 Mar 2000) ...

linea supracristalis
Synonym for supracrestal line ... A transverse line transecting the high point of both iliac crests, indicating the supracristal plane. ... See: supracristal plane. ... Synonym: linea supracristalis. ... (05 Mar 2000) ...

linea temporalis inferior
Synonym for inferior temporal line ... The lower of two curved lines on the parietal bone; it marks the outer limit of attachment of the temporalis muscle. ... Synonym: linea temporalis inferior, temporal ridge. ... (05 Mar 2000) ...

linea temporalis superior
Synonym for superior temporal line ... The upper of two curved lines on the parietal bone; the temporal fascia is attached to it. ... Synonym: linea temporalis superior, temporal ridge. ... (05 Mar 2000) ...

linea terminalis
An oblique ridge on the inner surface of the ilium and continued on the pubis, which forms the lower boundary of the iliac fossa; it separates the true from the false pelvis. ... Synonym: iliopectineal line, terminal line. ... (05 Mar 2000) ...

linea trapezoidea
Synonym for trapezoid line ... The area on the inferior surface of the clavicle near its lateral extremity on which the trapezoid ligament attaches. ... Synonym: linea trapezoidea, trapezoid ridge. ... (05 Mar 2000) ...

lineae albicantes
Synonym for striae cutis distensae ... Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. ... Synon …

lineae atrophicae
Synonym for striae cutis distensae ... Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. ... Synon …

lineae transversa ossi sacri
Synonym for transverse lines of sacrum ... One of four ridges that cross the pelvic surface of the sacrum; these mark the positions of the intervertebral disks between the bodies of the five sacral vertebrae in the immature bone. ... Synonym: lineae transversa ossi sacri. ... (05 Mar 2000) ...

lineage
<genetics> Term used to describe cells with a common ancestry, that is developing from the same type of identifiable immature cell. ... (04 Mar 1998) ...

linear
Pertaining to or resembling a line. ... Origin: L. Linearis ... (18 Nov 1997) ...

linear absorption coefficient
That fraction of ionizing radiation absorbed in a unit thickness of a substance or tissue. ... See: absorption coefficient. ... (05 Mar 2000) ...

linear acceleration
The rate of change of velocity without a change in direction; e.g., when the speed of an aircraft increases while flying a straight pathway. ... (05 Mar 2000) ...

linear accelerator
<apparatus> A sophisticated external beam radiotherapy machine which has the capabilities of focussing irradiation (although not very finely). ... Acronym: LinAC ... (16 Dec 1997) ...

linear amputation
Synonym for circular amputation ... Amputation performed by a circular incision through the skin, the muscles being similarly divided higher up, and the bone higher still. ... Synonym: guillotine amputation, linear amputation. ... (05 Mar 2000) ...

linear atrophy
Synonym for striae cutis distensae ... Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. ... Synon …

linear dichroism
Synonym for circular dichroism ... <chemistry> Differential absorption of right hand and left hand circularly polarized light resulting from molecular asymmetry involving a chromophore group. Circular dichroism is used to study the conformation of proteins in solution. ... (18 Nov 1997) ...

linear energy transfer
<radiobiology> Average amount of energy lost per unit of particle track length and expressed in keV um-1. ... Acronym: LET ... (16 Dec 1997) ...

linear epidermal nevus
Synonym for nevus unius lateris ... A congenital systematised linear nevus limited to one side of the body or to portions of the extremities on one side; lesions are often extensive, forming wave-like bands on the trunk and spiraling streaks on the extremities. ... Synonym: linear epidermal nevus. ... (05 Mar 2000) ...

linear fracture
A fracture running parallel with the long axis of the bone. ... Synonym: fissured fracture. ... (05 Mar 2000) ...

linear models
Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression. ... (12 Dec 1998) ...

linear skull fracture
A skull fracture resembling a line. ... (05 Mar 2000) ...

linebreeding
Practice of successive inbreeding of closely related individuals with the object of concentrating desirable or scientifically interesting genetic characteristics of some individual or group. ... (05 Mar 2000) ...

lined flap
A flap covered with epithelium on both sides; e.g., a folded skin flap. ... (05 Mar 2000) ...

liner
<botany> A plant seedling grown in a long narrow tube (typically 10 inches tall and 1.5 inches in diameter) for convenient transplanting onto a revegetation site. ... (04 Mar 1998) ...

LINES
<abbreviation> Long interspersed elements. ... (05 Mar 2000) ...

lines of Retzius
Synonym for 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) ...

lines of Zahn
Riblike markings seen by the naked eye on the surface of antemortem thrombi; they consist of a branching framework of platelets and fibrin separating the coagulated blood cells. ... Synonym: striae of Zahn. ... (05 Mar 2000) ...

Lineweaver Burke plot
A plot of 1/v against 1/S for an enzyme catalysed reaction, where v is the initial rate and s the substrate concentration. From the equation: 1/v = 1/Vmax(1+Km/S) the parameters Vmax and Km can be determined. The equation overweights the contribution of the least accurate points and other methods of analysis are preferred. ... See: Eadie Hofstee plo …

Lineweaver-Burk equation
A rearrangement of the Michaelis-Menten equation, 1/v = 1/Vmax + (Km/Vmax)(1/[S]). ... Compare: double-reciprocal plot. ... (05 Mar 2000) ...

Lineweaver-Burk plot
Synonym for double-reciprocal plot ... <statistics> A graph made to analyse how fast an enzyme can convert its substrate into its product, depending on how much substrate is present (its concentration) and to determine its maximum speed (after which the enzyme does not get any faster no matter how high the concentration of substrate gets), cal …

Lineweaver, Hans
<person> U.S. Physical chemist, *1907. ... See: Lineweaver-Burk equation, Lineweaver-Burk plot. ... (05 Mar 2000) ...

ling
1. <zoology> A large, marine, gadoid fish (Molva vulgaris) of Northern Europe and Greenland. It is valued as a food fish and is largely salted and dried. Called also drizzle. ... 2. The burbot of Lake Ontario. ... 3. An American hake of the genus Phycis. ... 4. A New Zealand food fish of the genus Genypterus. The name is also locally applied to …

Ling, Per Henrik
<person> Swedish hygienist, 1776-1839. ... See: Ling's method. ... (05 Mar 2000) ...

Ling's method
Gymnastic exercises (as in Swedish movements) without the use of apparatus. ... Synonym: lingism. ... (05 Mar 2000) ...

Lingelsheimia
Synonym: Acinetobacter. ... Origin: W. Von Lingelsheim ... (05 Mar 2000) ...

Lingelsheimia anitrata
Synonym for acinetobacter calcoaceticus ... A species of gram-negative, aerobic bacteria found in soil and water. Although considered to be normally nonpathogenic, this bacterium is a causative agent of nosocomial infections, particularly in debilitated individuals. ... (12 Dec 1998) ...

lingua cerebelli
Synonym for lingula of cerebellum ... A tongue-shaped sequence of flattened cerebellar folia forming the anterior (or superior) extreme of the cerebellar vermis, extending forward on the surface of the superior medullary velum between the two emerging superior cerebellar peduncles. ... Synonym: lingula cerebelli, lingua cerebelli, tongue of cerebellu …

lingua dissecta
Synonym for geographic tongue ... <clinical sign> A benign condition where there is a map-like appearance to the tongue resulting from irregular denuded patches in the surface (loss of tongue papillae). ... Likely secondary to local irritation from hot or spicy foods, alcohol or tobacco. There are no significant complications. ... (27 Sep 1997)< …

lingua fissurata
Synonym for fissured tongue ... A painless condition of the tongue characterised by numerous grooves or furrows on the dorsal surface. ... Synonym: grooved tongue, lingua fissurata, lingua plicata, scrotal tongue. ... (05 Mar 2000) ...

lingua frenata
A tongue with a very short frenum constituting tongue-tie. ... (05 Mar 2000) ...

lingua geographica
Synonym for geographic tongue ... <clinical sign> A benign condition where there is a map-like appearance to the tongue resulting from irregular denuded patches in the surface (loss of tongue papillae). ... Likely secondary to local irritation from hot or spicy foods, alcohol or tobacco. There are no significant complications. ... (27 Sep 1997)< …