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

labium anterius ostii uteri
Synonym for anterior lip of uterine os ... The portion of the vaginal part of the uterine cervix that bounds the ostium anteriorly intervening between the ostium and the anterior vaginal fornix. It is slightly shorter than labium posterius. ... Synonym: labium anterius ostii uteri. ... (05 Mar 2000) ...

labium externum cristae iliacae
Synonym for external lip of iliac crest ... The roughened outer margin of the crest that gives attachment to the external oblique and latissimus dorsi muscles above and to the fasciae latae and the tensor fascia lata muscle below. ... Synonym: labium externum cristae iliacae. ... (05 Mar 2000) ...

labium inferius oris
Synonym for lower lip ... The muscular fold bounding the opening of the mouth inferiorly. ... Synonym: labium inferius oris. ... (05 Mar 2000) ...

labium internum cristae iliacae
Synonym for internal lip of iliac crest ... The roughened inner margin of the crest that gives attachment to parts of the transversus abdominis, quadratus lumborum, and erector spinae muscles. ... Synonym: labium internum cristae iliacae. ... (05 Mar 2000) ...

labium laterale lineae asperae
Synonym for lateral lip of linea aspera ... The lateral margin of the linea aspera of the femur that gives attachment to the lateral intermuscular septum and the short head of the biceps femoris muscles. ... Synonym: labium laterale lineae asperae. ... (05 Mar 2000) ...

labium majus
One of two rounded folds of integument forming the lateral boundaries of the pudendal cleft. The labia majora are the female homolog of the scrotum. ... Synonym: labium majus pudendi, large pudendal lip. ... (05 Mar 2000) ...

labium majus pudendi
Synonym for labium majus ... One of two rounded folds of integument forming the lateral boundaries of the pudendal cleft. The labia majora are the female homolog of the scrotum. ... Synonym: labium majus pudendi, large pudendal lip. ... (05 Mar 2000) ...

labium mediale lineae asperae
Synonym for medial lip of linea aspera ... The medial margin of the linea aspera of the femur that provides attachment for part of the vastus medialis muscle. ... Synonym: labium mediale lineae asperae. ... (05 Mar 2000) ...

labium minus
One of two narrow longitudinal folds of mucous membrane enclosed in the pudendal cleft within the labia majora; posteriorly, they gradually merge into the labia majora and join to form the frenulum labiorum pudendi (fourchette); anteriorly, each labium divides into two portions which unite with those of the opposite side in front of the glans clito …

labium minus pudendi
Synonym for labium minus ... One of two narrow longitudinal folds of mucous membrane enclosed in the pudendal cleft within the labia majora; posteriorly, they gradually merge into the labia majora and join to form the frenulum labiorum pudendi (fourchette); anteriorly, each labium divides into two portions which unite with those of the opposite side …

labium posterius ostii uteri
Synonym for posterior lip of uterine os ... The portion of the uterine cervix that bounds the ostium posteriorly. It is slightly longer than labium anterius, intervening between the cervical canal and the posterior fornix of the vagina. ... Synonym: labium posterius ostii uteri. ... (05 Mar 2000) ...

labium superius oris
Synonym for upper lip ... The muscular fold forming the superior border of the mouth. ... Synonym: labium superius oris. ... (05 Mar 2000) ...

labium vocale
Synonym for vocal fold ... One of Ferrein's cords; the sharp edge of a fold of mucous membrane overlying the vocal ligament and stretching along either wall of the larynx from the angle between the laminae of the thyroid cartilage to the vocal process of the arytenoid cartilage; the vocal folds are the agents concerned in voice production. ... Synony …

laboratorian
<specialist> One who works in a laboratory; in the medical and allied health professions, one who examines or performs tests (or supervises such procedures) with various types of chemical and biologic materials, chiefly as an aid in the diagnosis, treatment, and control of disease, or as a basis for health and sanitation practices. ... (05 Mar …

laboratories
Facilities equipped to carry out investigative procedures. ... (12 Dec 1998) ...

laboratories, dental
Facilities in which the dentist or his auxiliaries perform services related to treatment not done directly in the patient's mouth. ... (12 Dec 1998) ...

laboratories, hospital
Hospital facilities equipped to carry out investigative procedures. ... (12 Dec 1998) ...

laboratory
Origin: Shortened fr. Elaboratory; cf. OF. Elaboratoire, F. Laboratoire. See Elaborate, Labour] [Formerly written also elaboratory. ... The workroom of a chemist; also, a place devoted to experiments in any branch of natural science; as, a chemical, physical, or biological laboratory. Hence, by extension, a place where something is prepared, or some …

laboratory animal science
The science and technology dealing with the procurement, breeding, care, health, and selection of animals used in biomedical research and testing. ... (12 Dec 1998) ...

laboratory chemicals
Chemicals necessary to perform experimental and/or investigative procedures and for the preparation of drugs and other chemicals. ... (12 Dec 1998) ...

laboratory diagnosis
A diagnosis made by a chemical, microscopic, microbiologic, immunologic, or pathologic study of secretions, discharges, blood, or tissue. ... (05 Mar 2000) ...

laboratory infection
Accidentally acquired infection in laboratory workers. ... (12 Dec 1998) ...

laboratory personnel
Those health care professionals, technicians, and assistants staffing a research or health care facility where specimens are grown, tested, or evaluated and the results of such measures are recorded. ... (12 Dec 1998) ...

labour
<obstetrics> The act of giving birth to a baby. There are four stages: ... The first stage lasts from the onset of labour until there is full dilation (10 cm.) of the cervical os (opening). The first stage of labour is also called the stage of dilatation. ... The second stage lasts from the full dilatation of the cervix until the baby is comple …

labour complications
<obstetrics> Medical problems associated with labour including cephalopelvic disproportion, haemorrhage, foetal distress, or other disorders. ... (12 Dec 1998) ...

labour onset
<obstetrics> The establishment of regular uterine contractions together with beginning dilatation of the cervix. ... (12 Dec 1998) ...

labour pains
<obstetrics> Rhythmical uterine contractions which under normal conditions increase in intensity, frequency, and duration, culminating in vaginal delivery of the infant. ... Synonym: parodynia. ... (05 Mar 2000) ...

labour presentation
The part of the foetal body that is in advance in the birth canal. ... (12 Dec 1998) ...

labour, premature
Onset of labour before term but after the foetus has become viable, usually sometime during the 29th through 38th week of gestation. ... (12 Dec 1998) ...

laboured respiration
<chest medicine> Difficult, usually deep, breathing in patients with cardiac or pulmonary disease or disease affecting nervous system control of ventilation. ... (05 Mar 2000) ...

labra
Plural of labrum. ... Origin: L. ... (05 Mar 2000) ...

labrador
A region of British America on the Atlantic coast, north of Newfoundland. ... <zoology> Labrador duck, a sea duck (Camtolaimus Labradorius) allied to the eider ducks. It was formerly common on the coast of new England, but is now supposed to be extinct, no specimens having been reported since 1878. Labrador feldspar. See Labradorite. ... <bo …

Labrador keratopathy
Synonym for climatic keratopathy ... A bilateral, symmetrical corneal dystrophy caused by prolonged exposure to extremes of heat or cold; nodular opacities are limited to the interpalpebral area and vision is only mildly affected. ... Synonym: Labrador keratopathy. ... (05 Mar 2000) ...

labrale inferius
<anatomy> A point where the boundary of the vermilion border of the lower lip and the skin is intersected by the median plane. ... (05 Mar 2000) ...

labrale superius
<anatomy> The point on the upper lip lying in the median sagittal plane on a line drawn across the boundary of the vermilion border and skin. ... (05 Mar 2000) ...

labrocyte
Synonym for mast cell ... <cell biology, immunology> Resident cell of connective tissue that contains many granules rich in histamine and heparan sulphate. ... Release of histamine from mast cells is responsible for the immediate reddening of the skin in a weal and flare response. Very similar to basophils and possibly derived from the same ste …

labrum acetabulare
Synonym for acetabular labrum ... A fibrocartilaginous rim attached to the margin of the acetabulum of the hip bone. ... Synonym: labrum acetabulare, acetabular lip, circumferential cartilage, cotyloid ligament, ligamentum cotyloideum. ... (05 Mar 2000) ...

labrum articulare
Synonym for articular labrum ... A fibrocartilaginous lip around the margin of the concave portion of some joints. ... Synonym: labrum articulare, articular lip. ... (05 Mar 2000) ...

labrum glenoidale
Synonym for glenoid labrum ... A ring of fibrocartilage attached to the margin of the glenoid cavity of the scapula to increase its depth. ... Synonym: labrum glenoidale, articular margin, circumferential cartilage, glenoid ligament, glenoidal lip, ligamentum glenoidale. ... (05 Mar 2000) ...

labyrinth
1. An edifice or place full of intricate passageways which render it difficult to find the way from the interior to the entrance; as, the Egyptian and Cretan labyrinths. ... 2. Any intricate or involved inclosure; especially, an ornamental maze or inclosure in a park or garden. ... 3. Any object or arrangement of an intricate or involved form, or hav …

labyrinth supporting cells
Cells forming a framework supporting the organ of corti. Specific cells are those of claudius, deiters and hensen. ... (12 Dec 1998) ...

labyrinthectomy
<procedure> Excision of the labyrinth; a destructive operation to destroy labyrinthine function. ... Origin: Labyrinth + G. Ektome, excision ... (05 Mar 2000) ...

labyrinthici
<zoology> An order of teleostean fishes, including the Anabas, or climbing perch, and other allied fishes. ... They have, connected with the gill chamber, a special cavity in which a labyrinthiform membrane is arranged so as to retain water to supply the gills while the fish leaves the water and travels about on land, or even climbs trees. ... …

labyrinthine
Relating to any labyrinth. ... (05 Mar 2000) ...

labyrinthine angiospasm
Synonym for Lermoyez' syndrome ... <syndrome> Increasing deafness, interrupted by a sudden attack of dizziness, after which the hearing improves. ... Synonym: labyrinthine angiospasm. ... (05 Mar 2000) ...

labyrinthine apoplexy
A clinical syndrome manifested as a single, abrupt attack of severe vertigo, nausea, and vomiting, with permanent loss of labyrinthine function on one side, but without associated hearing loss or tinnitus. Attributed to occlusion of the labyrinthine branch of the internal auditory artery. ... (05 Mar 2000) ...

labyrinthine artery
<anatomy, artery> Internal acoustic meatal branch. A branch of the basilar artery that enters the labyrinth through the internal acoustic meatus. ... Synonym: arteria labyrinthi, ramus meatus acustici interni, arteria auditiva interna, artery of labyrinth, internal auditory artery. ... (05 Mar 2000) ...

labyrinthine fluids
Fluids found within the osseous labyrinth (perilymph) and the membranous labyrinth (endolymph) of the inner ear. ... (12 Dec 1998) ...

labyrinthine nystagmus
Synonym for vestibular nystagmus ... Nystagmus resulting from physiological stimuli to the labyrinth that may be rotatory, caloric, compressive, or galvanic, or due to labyrinthal lesions. ... See: Barany's sign. ... Synonym: labyrinthine nystagmus. ... (05 Mar 2000) ...

labyrinthine placenta
A placenta in which maternal blood circulates through channels within the foetal syncytiotrophoblast. ... (05 Mar 2000) ...

labyrinthine reflexes
Reflex's initiated through stimulation of receptors in the utricle or semicircular canals. ... See: statotonic reflexes, statokinetic reflex, righting reflexes. ... (05 Mar 2000) ...

labyrinthine righting reflexes
Stimulation of the proprioceptors of the labyrinth causes changes in tone of the neck muscles which bring the head into its natural position in space. ... (05 Mar 2000) ...

labyrinthine torticollis
Torticollis due to vestibular disorder. ... (05 Mar 2000) ...

labyrinthine veins
One or more veins accompanying the labyrinthine artery; they drain the internal ear, pass out through the internal acoustic meatus, and empty into the transverse sinus or the inferior petrosal sinus. ... Synonym: venae labyrinthi, internal auditory veins. ... (05 Mar 2000) ...

labyrinthine vertigo
Synonym for Meniere's disease ... <neurology> A name applied to recurrent vertigo accompanied by ringing in the ears (tinnitus) and deafness. A dysfunction of the semi-circular canals (endolymphatic sac) in the inner ear. ... Symptoms include dizziness, hearing loss (one-sided), vertigo, nausea, vomiting and abnormal eye movements. ... Treatment …

labyrinthine wall of middle ear
Synonym for medial wall of tympanic cavity ... A bony layer separating the middle from the internal ear or labyrinth; it contains the fenestra vestibuli and the fenestra cochleae. ... Synonym: paries labyrinthicus cavi tympani, labyrinthine wall of middle ear, medial wall of middle ear. ... (05 Mar 2000) ...

labyrinthitis
<pathology> Inflammation of the inner ear and semicircular canals. These structures are normally responsible for the maintenance balance and the perception of body position. Inflammation of these structures can result in nausea, vomiting and vertigo made worse by movement. ... (27 Sep 1997) ...

labyrinthotomy
<procedure> Incision into the labyrinth. ... Origin: Labyrinth + G. Tome, incision ... (05 Mar 2000) ...

labyrinthus
Synonym: convoluted part of kidney lobule. ... Origin: L. Fr. G. Labyrinthos, labyrinth ... (05 Mar 2000) ...

labyrinthus cochlearis
Synonym for cochlear labyrinth ... The content of the cochlea including the portion of the membranous labyrinth containing the spiral organ (cochlear duct) and the perilymphatic channels (scalae) which lie on either side. ... Synonym: labyrinthus cochlearis, organ of hearing. ... (05 Mar 2000) ...

labyrinthus ethmoidalis
Synonym for ethmoidal labyrinth ... A mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit. ... Synonym: labyrinthus ethmoidalis, ectethmoid, ectoethmo …

labyrinthus membranaceus
Synonym for membranous labyrinth ... A complex arrangement of communicating membranous canaliculi and sacs, filled with endolymph and surrounded by perilymph, suspended within the cavity of the bony labyrinth; its chief divisions are the cochlear labyrinth and the vestibular labyrinth. ... Synonym: labyrinthus membranaceus. ... (05 Mar 2000) ...

labyrinthus osseus
Synonym for bony labyrinth ... A series of cavities (cochlea, vestibule, and semicircular canals) contained within the otic capsule of the petrous portion of the temporal bone; the bony labyrinth is filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended. ... Synonym: labyrinthus osseus, osseous labyrinth. ... …

labyrinthus vestibularis
Synonym for vestibular labyrinth ... The portion of the membranous labyrinth located within the semicircular canals and the vestibule of the osseous labyrinth. It is surrounded with perilymph and involved with vestibular functions. ... Synonym: labyrinthus vestibularis. ... (05 Mar 2000) ...

lac
A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance. ... Stick-lac is the substance in its natural state, incrusting small twigs. When broken off, and the co …

Lac operon
Synonym for lactose operon ... Group of adjacent and coordinately controlled genes concerned with the metabolism of lactose in E. Coli. The lac operon was the first example of a group of genes under the control of an operator region to which a lactose repressor binds. When the bacteria are transferred to lactose containing medium, allolactose (which …

lac sulfuris
Synonym for precipitated sulfur ... Sublimed sulfur boiled with lime water, the lime being removed from the precipitate by washing with diluted hydrochloric acid; used in preparing sulfur ointment and in the treatment of various skin disorders. ... Synonym: lac sulfuris, milk of sulfur. ... (05 Mar 2000) ...

lac vaccinum
Cow's milk. ... (05 Mar 2000) ...

lacca
Synonym for shellac ... A resinous excretion of an insect, Laccifer (Tachardia) lacca (family Coccidae). The insects suck the juice of various resiniferous Asiatic (chiefly Indian) trees and excrete and deposit 'stick-lac.' shellac softens at a low temperature. It has many nonmedicinal uses and is also used to coat confections and tablets and in den …

laccase
<enzyme> An enzyme oxidizing benzenediols to semiquinones with O2. ... Synonym: monophenol monooxygenase, phenol oxidase, phenolase, polyphenol oxidase, urushiol oxidase. ... (05 Mar 2000) ...

lace
1. That which binds or holds, especially by being interwoven; a string, cord, or band, usually one passing through eyelet or other holes, and used in drawing and holding together parts of a garment, of a shoe, of a machine belt, etc. 'His hat hung at his back down by a lace.' (Chaucer) 'For striving more, the more in laces strong Himself he tied.' …

lacerable
Capable of being, or liable to be, torn. ... Origin: L. Lacero, to tear to pieces, fr. Lacer, mangled ... (05 Mar 2000) ...

lacerate
To cut. ... (27 Sep 1997) ...

lacerated foramen
Synonym for foramen lacerum ... <anatomy> An irregular aperture, filled with cartilage (basilar cartilage) in the living, located between the apex of the petrous part of the temporal bone, the body of the sphenoid, and the basilar part of the occipital bones. Several structures pass along the margins of the foramen in a nearly horizontal direc …

laceration
1. The act of tearing. ... 2. A torn, ragged, mangled wound. ... Origin: L. Laceratio ... (18 Nov 1997) ...

lacerta
1. <zoology> A genus of lizards. See Lizard. ... Formerly it included nearly all the known lizards. It is now restricted to certain diurnal Old World species, like the green lizard (Lacerta viridis) and the sand lizard (L. Agilis), of Europe. ... 2. <astronomy> The Lizard, a northern constellation. ... Origin: L. A lizard. See Lizard. ... S …

lacertilia
<zoology> An order of Reptilia, which includes the lizards. ... They are closely related to the snakes, and life the latter, usually have the body covered with scales or granules. They usually have eyelids, and most of then have well-formed legs; but in some groups (amphisbaena, glass-snake, etc) the legs are wanting and the body is serpentlik …

lacertus cordis
One of the trabeculae carneae. ... (05 Mar 2000) ...

lacertus fibrosus
Synonym for bicipital aponeurosis ... Aponeurosis bicipitalis, radiating fibres from the tendon of insertion of the biceps which form a triangular band passing obliquely across the hollow of the elbow to the ulnar side and becoming merged into the deep fascia of the forearm. Formerly called 'grace Dieu' fascia, it serves to protect the brachial arte …

lacertus medius
Synonym for anterior longitudinal ligament ... <anatomy> The wide fibrous band interconnecting the anterior surfaces of the vertebral bodies. ... Synonym: lacertus medius, ligamentum longitudinale anterius. ... (05 Mar 2000) ...

lacertus musculi recti lateralis
Synonym for lacertus of lateral rectus muscle ... <anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. ... Synonym: lacertus musculi recti lateralis. ... (05 Mar 2000 …

lacertus of lateral rectus muscle
<anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. ... Synonym: lacertus musculi recti lateralis. ... (05 Mar 2000) ...

Lachman test
A manoeuvre to detect deficiency of the anterior cruciate ligament; with the knee flexed 20 to 30 degrees, the tibia is displaced anteriorly relative to the femur; a soft endpoint or greater than 4 millimeters of displacement is positive (abnormal). ... (05 Mar 2000) ...

lachman's test
<investigation> A physical examination technique used to detect injury to the anterior cruciate ligament in the knee. The examiner will have you lay on your back with your knee bent at a 30 degree angle. Holding the end portion of your thigh with one hand and the top of the shin with the other hand, the examiner will apply slow pressure to th …

LACI
<abbreviation> Lipoprotein-associated coagulation inhibitor. ... (05 Mar 2000) ...

lacing
1. The act of securing, fastening, or tightening, with a lace or laces. ... 2. <machinery> A lace; specifically, a thong of thin leather for uniting the ends of belts. ... 3. A rope or line passing through eyelet holes in the edge of a sail or an awning to attach it to a yard, gaff, etc. ... 4. <engineering> A system of bracing bars, not c …

lacinia
Origin: L, the lappet or flap of a garment. ... 1. <botany> One of the narrow, jagged, irregular pieces or divisions which form a sort of fringe on the borders of the petals of some flowers. A narrow, slender portion of the edge of a monophyllous calyx, or of any irregularly incised leaf. ... 2. <zoology> The posterior, inner process of t …

laciniae tubae
Synonym: fimbriae of uterine tube. ... Origin: L. Lacinia, fringe ... (05 Mar 2000) ...

laciniate
Slashed into narrow, pointed lobes. ... (09 Oct 1997) ...

laciniate ligament
Synonym for flexor retinaculum of lower limb ... A wide band passing from the medial malleolus to the medial and upper border of the calcaneus and to the plantar surface as far as the navicular bone; it holds in place the tendons of the tibialis posterior, flexor digitorum longus, and flexor hallucis longus. ... Synonym: retinaculum musculorum flexor …

lacis cell
One of the cell's of the juxtaglomerular apparatus found at the vascular pole of the renal corpuscle. ... Origin: Fr. Lacis, meshwork ... (05 Mar 2000) ...

laconical
1. Expressing much in few words, after the manner of the Laconians or Spartans; brief and pithy; brusque; epigrammatic. In this sense laconic is the usual form. 'I grow laconic even beyond laconicism; for sometimes I return only yes, or no, to questionary or petitionary epistles of half a yard long.' (Pope) 'His sense was strong and his style lacon …

lacquer
A varnish, consisting of a solution of shell-lac in alcohol, often coloured with gamboge, saffron, or the like; used for varnishing metals, papier-mache, and wood. The name is also given to varnishes made of other ingredients, especially. The tough, solid varnish of the Japanese, with which ornamental objects are made. ... Origin: F. Lacre a sort of …

lacrimal
Pertaining to the tears. ... (18 Nov 1997) ...

lacrimal apparatus
The tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system. ... (12 Dec 1998) ...

lacrimal apparatus diseases
Diseases of the lacrimal apparatus. ... (12 Dec 1998) ...

lacrimal artery
<anatomy, artery> Origin, ophthalmic; distribution, lacrimal gland, lateral and superior rectus muscles, superior eyelid, forehead, and temporal fossa. ... Synonym: arteria lacrimalis. ... (05 Mar 2000) ...

lacrimal bay
Synonym for lacrimal lake ... The small cistern-like area of the conjunctiva at the medial angle of the eye, in which the tears collect after bathing the anterior surface of the eyeball and the conjunctival sac. ... Synonym: lacus lacrimalis, lacrimal bay. ... (05 Mar 2000) ...

lacrimal bone
An irregularly rectangular thin plate, forming part of the medial wall of the orbit behind the frontal process of the maxilla; it articulates with the inferior nasal concha, ethmoid, frontal, and maxillary bones. ... Synonym: os lacrimale, os unguis. ... (05 Mar 2000) ...

lacrimal border of maxilla
The margin of the nasal surface of the maxilla that articulates with the lacrimal bone. ... Synonym: margo lacrimalis maxillae, lacrimal margin of maxilla. ... (05 Mar 2000) ...