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

isthmus of external acoustic meatus
The narrowest portion of this canal in the bony part near its deep termination. ... Synonym: isthmus meatus acustici externi. ... (05 Mar 2000) ...

isthmus of fauces
The constricted and short space which establishes the connection between the cavity of the mouth and the oro-pharynx, bounded anteriorly by the palatoglossal folds and posteriorly by the palatopharyngeal folds; the lateral well is the tonsillar fossa. ... Synonym: isthmus faucium. ... (05 Mar 2000) ...

isthmus of gyrus fornicatus
Synonym for isthmus of cingulate gyrus ... The narrowing of the cingulate gyrus, at its transition with the hippocampal gyrus behind and below the splenium of the corpus callosum, caused by the anterior extension of the conjoined parieto-occipital and calcarine sulci. ... Synonym: isthmus gyri cinguli, isthmus of gyrus fornicatus, isthmus of limbic l …

isthmus of His
Synonym for rhombencephalic isthmus ... A constriction in the embryonic neural tube delineating the mesencephalon from the rhombencephalon, the anterior portion of the rhombencephalon connecting with the mesencephalon. ... Synonym: isthmus rhombencephali, isthmus of His. ... (05 Mar 2000) ...

isthmus of limbic lobe
Synonym for isthmus of cingulate gyrus ... The narrowing of the cingulate gyrus, at its transition with the hippocampal gyrus behind and below the splenium of the corpus callosum, caused by the anterior extension of the conjoined parieto-occipital and calcarine sulci. ... Synonym: isthmus gyri cinguli, isthmus of gyrus fornicatus, isthmus of limbic l …

isthmus of prostate
The narrow middle part of the prostate anterior to the urethra. ... Synonym: isthmus prostatae. ... (05 Mar 2000) ...

isthmus of thyroid
The central part of the thyroid gland joining the two lateral lobes. ... Synonym: isthmus glandulae thyroideae. ... (05 Mar 2000) ...

isthmus of uterine tube
The narrow portion of the uterine tube adjoining the uterus. ... Synonym: isthmus tubae uterinae. ... (05 Mar 2000) ...

isthmus of uterus
An elongated constriction at the junction of the body and cervix of the uterus. ... Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. ... (05 Mar 2000) ...

isthmus pharyngonasalis
Synonym for choana ... The opening into the nasopharynx of the nasal cavity on either side. ... Synonym: isthmus pharyngonasalis, posterior naris, postnaris. ... Origin: Mod. L. Fr. G. Choane, a funnel ... (05 Mar 2000) ...

isthmus prostatae
Synonym for isthmus of prostate ... The narrow middle part of the prostate anterior to the urethra. ... Synonym: isthmus prostatae. ... (05 Mar 2000) ...

isthmus rhombencephali
Synonym for rhombencephalic isthmus ... A constriction in the embryonic neural tube delineating the mesencephalon from the rhombencephalon, the anterior portion of the rhombencephalon connecting with the mesencephalon. ... Synonym: isthmus rhombencephali, isthmus of His. ... (05 Mar 2000) ...

isthmus tubae auditivae
Synonym for isthmus of auditory tube ... The narrowest portion of the auditory tube at the junction of the cartilaginous and bony portions. ... Synonym: isthmus tubae auditivae, isthmus of eustachian tube. ... (05 Mar 2000) ...

isthmus tubae uterinae
Synonym for isthmus of uterine tube ... The narrow portion of the uterine tube adjoining the uterus. ... Synonym: isthmus tubae uterinae. ... (05 Mar 2000) ...

isthmus uteri
Synonym for isthmus of uterus ... An elongated constriction at the junction of the body and cervix of the uterus. ... Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. ... (05 Mar 2000) ...

itaconic acid
CH2==C(COOH)CH2COOH;the decarboxylation product of cis-aconitic acid. ... Synonym: methylenesuccinic acid. ... (05 Mar 2000) ...

Itai-Itai disease
A form of cadmium poisoning described in Japanese people, characterised by renal tubular dysfunction, osteomalacia, pseudofractures, and anaemia, caused by ingestion of contaminated shellfish or other sources containing cadmium. ... (05 Mar 2000) ...

Italian flap
Flap from a distant area; usually used in reference to a flap from the upper arm to rebuild a nose. ... (05 Mar 2000) ...

Italian method
Synonym for Italian rhinoplasty ... Italian method rhinoplasty utilizing a flap from the arm. ... Synonym: Italian method, Italian operation, tagliacotian operation. ... (05 Mar 2000) ...

Italian operation
Synonym for Italian rhinoplasty ... Italian method rhinoplasty utilizing a flap from the arm. ... Synonym: Italian method, Italian operation, tagliacotian operation. ... (05 Mar 2000) ...

Italian rhinoplasty
Italian method rhinoplasty utilizing a flap from the arm. ... Synonym: Italian method, Italian operation, tagliacotian operation. ... (05 Mar 2000) ...

itch
1. To have an uneasy sensation in the skin, which inclines the person to scratch the part affected. 'My mouth hath itched all this long day.' (Chaucer) ... 2. To have a constant desire or teasing uneasiness; to long for; as, itching ears. 'An itching palm.' ... Origin: OE. Icchen, icchen, AS. Giccan; akin to D. Jeuken, joken, G. Jucken, OHG. Jucchen. …

itching
Medically known as pruritis. Something that is itchy is pruritic. ... (12 Dec 1998) ...

iter chordae anterius
Synonym for anterior canaliculus of chorda tympani ... <anatomy> A canal in the petrotympanic or glaserian fissure, near its posterior edge, through which the chorda tympani nerve issues from the skull. ... Synonym: Civinini's canal, Huguier's canal, iter chordae anterius. ... (05 Mar 2000) ...

iter chordae posterius
Synonym for posterior canaliculus of chorda tympani ... A canal leading from the facial canal to the tympanic cavity through which the chorda tympani nerve enters this cavity. ... Synonym: canaliculus chordae tympani, iter chordae posterius, small canal of chorda tympani. ... (05 Mar 2000) ...

iter dentis
The route or routes by which one or more teeth erupt. ... Synonym: iter dentium. ... (05 Mar 2000) ...

iter dentium
Synonym for iter dentis ... The route or routes by which one or more teeth erupt. ... Synonym: iter dentium. ... (05 Mar 2000) ...

iteral
Relating to an iter. ... (05 Mar 2000) ...

iteroparous
Able to spawn more than one time, reproducing annually, or having more than one brood. ... (09 Oct 1997) ...

ithycyphosis
An obsolete term for pure kyphosis without lateral displacement of the spine. ... Origin: G. Ithys, straight, + kyphos, a hump ... (05 Mar 2000) ...

ithylordosis
An obsolete term for a pure lordosis without lateral curvature of the spine. ... Origin: G. Ithys, straight, + lordosis, a forward curvature of the spine, fr. Lordos, bent backward (opp. Of kyphos, humped ... (05 Mar 2000) ...

Ito cells
Fat-containing cell's lining hepatic sinusoids. ... (05 Mar 2000) ...

ITO method
A concise matrix method for computing the distribution of genotypes of relatives that at one locus may share no genes in common, one, or both. ... (05 Mar 2000) ...

Ito-Reenstierna test
Synonym for Ducrey test ... An intradermal test, using inactivated Haemophilus ducreyi, for diagnosis of chancroid; a positive delayed reaction is indicative of present or past infection; false-positive results occur. ... Synonym: Ito-Reenstierna test. ... (05 Mar 2000) ...

Ito, Hayozo
<person> 19th century Japanese physician, *1865. ... See: Ito-Reenstierna test. ... (05 Mar 2000) ...

Ito, Minor
<person> 20th century Japanese dermatologist. ... See: Ito's nevus, hypomelanosis of Ito. ... (05 Mar 2000) ...

Ito, T
<person> 20th century Japanese physician. ... See: Ito cells. ... (05 Mar 2000) ...

Ito's nevus
Pigmentation of skin innervated by lateral branches of the supraclavicular nerve and the lateral cutaneous nerve of the arm, due to scattered, heavily pigmented, dendritic melanocytes in the dermis. ... (05 Mar 2000) ...

ITP
This is a form of autoimmune illness of unknown cause that results in the destruction of blood platelets. The platelet count becomes exceedingly low and spontaneous bleeding from the gums, gastrointestinal tract and nose can be seen. Physical examination may demonstrate enlargement of the spleen. A typical rash occurs to do microscopic haemorrhage …

itraconazole
Oral antifungal drug used for a number of AIDS-related fungal infections. Itraconazole concentrates in the skin and is particularly effective for skin conditions. Possible side effects include digestive upset, loss of potassium and headache. ... (09 Oct 1997) ...

itramin tosylate
2-Aminoethyl nitrate p-toluenesulfonate;a vasodilator. ... (05 Mar 2000) ...

IU
<abbreviation> International unit. ... (05 Mar 2000) ...

IUB
<abbreviation> International Union of Biochemistry. ... (05 Mar 2000) ...

IUCD
<abbreviation> Intrauterine contraceptive devices. ... (05 Mar 2000) ...

IUD
A contraceptive device that is placed within the uterus for the purpose of inhibiting conception. ... (27 Sep 1997) ...

IUPAC
<abbreviation> International Union of Pure and Applied Chemistry. ... (05 Mar 2000) ...

iv
Within or into a vein. ... (27 Sep 1997) ...

iv cholangiography
<radiology> Agent: iodipamide meglumine, 20 ml IV, indications: determine patency of cystic duct and common bile duct, ** not performed anymore !! ... (12 Dec 1998) ...

iv fluid
The administration of a balanced electrolyte (salt) solution into the venous circulation. ... (27 Sep 1997) ...

IVB
<abbreviation> Intraventricular block. ... (05 Mar 2000) ...

IVC
<abbreviation> Inferior vena cava. ... (05 Mar 2000) ...

Ivemark
Bjorn, Swedish pathologist, *1925. ... See: Ivemark's syndrome. ... (05 Mar 2000) ...

Ivemark's syndrome
<syndrome> A possibly heritable disorder in which organs of the left side of the body are a mirror image of their counterpart on the right side (e.g., normal asymmetry of the lungs is lost and the left lung has three lobes); splenic agenesis and cardiac malformations are associated. ... (05 Mar 2000) ...

ivermectin
<chemical> A mixture of ivermectin component b1a (rn 71827-03-7) and b1b (rn 70209-81-3), which is a semisynthetic product from streptomyces avermitilis. A potent macrocyclic lactone disaccharide antiparasitic agent used to prevent and treat parasite infestations in animals. The compound has activity against internal and external parasites an …

IVF
<abbreviation> In vitro fertilization. ... (05 Mar 2000) ...

IVF-ET
<abbreviation> In vitro fertilization and in vivo transfer of the embryo to the uterus, Fallopian tube, or the peritoneal cavity. ... (05 Mar 2000) ...

ivory
1. The hard, white, opaque, fine-grained substance constituting the tusks of the elephant. It is a variety of dentine, characterised by the minuteness and close arrangement of the tubes, as also by their double flexure. It is used in manufacturing articles of ornament or utility. ... Ivory is the name commercially given not only to the substance con …

ivory exostosis
A small, rounded, eburnated tumour arising from a bone, usually one of the cranial bones. ... (05 Mar 2000) ...

ivory membrane
Synonym for membrana eboris ... The lining membrane of the pulp cavity of a tooth, consisting of the odontoblastic layer. ... Synonym: ivory membrane. ... (05 Mar 2000) ...

ivory vertebra
A radiographically dense vertebra, usually from metastatic disease, especially lymphoma when solitary. ... (05 Mar 2000) ...

ivory vertebral body
<radiology> Single or multiple very dense vertebra: collapse, metastases, sclerotic metastasis or treated lytic metastasis, preservation of disc space and vertebral body size, Paget's disease, usually single vertebral body, expanded body with thickened cortex and coarsened trabeculation, disc space preserved, lymphoma, preservation of disc sp …

IVP
Synonym for intravenous pyelogram ... <investigation, radiology> A special diagnostic test that follows the time course of excretion of a radiopaque contrast dye through the kidneys, ureters and bladder after it is injected into a vein. ... (30 Mar 1998) ...

IVU
<abbreviation> Intravenous urogram; preferred to IVP. ... See: intravenous urography. ... (05 Mar 2000) ...

ivy
1. <botany> A plant of the genus Hedera (H. Helix), common in Europe. Its leaves are evergreen, dark, smooth, shining, and mostly five-pointed; the flowers yellowish and small; the berries black or yellow. The stem clings to walls and trees by rootlike fibres. 'Direct The clasping ivy where to climb.' (Milton) 'Ye myrtles brown, with ivy neve …

Ivy bleeding time test
A bleeding time test in which a sphygmomanometer is inflated to 40 mm Hg around the upper arm, a 5-mm deep incision is made on the flexor surface of the forearm, and the time is measured to cessation of bleeding. ... (05 Mar 2000) ...

Ivy loop wiring
Placement of a wire around two adjacent teeth to provide an attachment for intermaxillary elastics. ... (05 Mar 2000) ...

ixodes
<zoology> A genus of parasitic Acarina, which includes various species of ticks. ... Origin: NL, fr. Gr. Like birdlime; birdlime + form. ... (30 Mar 1998) ...

Ixodes bicornis
A species, found in Mexico, whose bite causes fever and extreme malaise. ... (05 Mar 2000) ...

Ixodes cookei
A species that is a vector of Powassan virus in Canada. ... (05 Mar 2000) ...

Ixodes dammini
A species that is a vector of Lyme disease (Borrelia burgdorferi) and human babesiosis (Babesia microti) in the U.S. Bites causing Lyme disease in humans are from nymphal ticks about the size of a pencil point, infected with B. Burgdorferi from white-footed field mice. Adult ticks complete their two-year life cycle feeding on deer. ... (05 Mar 2000) …

Ixodes holocyclus
A species in Australia that infests the kangaroo and transmits a paralytic disease to young cattle. ... (05 Mar 2000) ...

Ixodes pacificus
The California black-legged tick, a species that is the vector of Lyme disease in the western U.S. ... (05 Mar 2000) ...

Ixodes persulcatus
A Eurasian species that is a vector for Russian spring-summer encephalitis and Lyme disease, and is associated with the taiga forest of the area formerly known as the USSR. ... (05 Mar 2000) ...

Ixodes pilosus
The paralysis tick, a species that infests sheep in South Africa and causes paralysis. ... (05 Mar 2000) ...

Ixodes ricinus
The castor bean tick, a Euroasian species that infests cattle, sheep, and wild animals, and transmits the virus of louping ill, the piroplasm Babesia divergens, the central European tick-borne encephalitis virus, and the Lyme disease bacterium. ... (05 Mar 2000) ...

Ixodes scapularis
The black-legged or shoulder tick, a species found on animals in the southern and eastern U.S.; capable of inflicting a painful bite to humans, and of being a vector of Lyme disease. ... (05 Mar 2000) ...

Ixodes spinipalpis
A species parasitic on wild rodents in British Columbia and the vector of Powassan virus in mice of the genus Peromyscus. ... (05 Mar 2000) ...

ixodiasis
Skin lesions caused by the bites of certain ixodid ticks. In some cases the tick burrows under the skin, causing some degree of irritation, but in most cases an urticarioid eruption is the only result. ... (05 Mar 2000) ...

ixodic
Relating to or caused by ticks. ... (05 Mar 2000) ...

ixodid
Common name for members of the family Ixodidae. ... (05 Mar 2000) ...

Ixodidae
A family of ticks (order Acarina, suborder Ixodides), the so-called 'hard' ticks, characterised by rigid body form, presence of a dorsal shield, and an anteriorly projecting capitulum. It includes the genera Ixodes, Hyalomma, Amblyomma, Boophilus, Margaropus, Dermacentor, Haemaphysalis, and Rhipicephalus, species of which transmit many important hu …

Ixodoidea
Superfamily of the order Acarina that includes the families Ixodidae and Argasidae. ... Origin: G. Ixodes, sticky ... (05 Mar 2000) ...

J chain
<molecular biology> A polypeptide chain (15 kD), found in IgA and in IgM joining heavy chains (H chains) to each other to form dimers of IgA and pentamers of IgM. Disulphide bonds are formed between the J chain and H chains near the Fc ends of the heavy chains. Despite the similar name, it is not identical with the J region or coded for by th …

J gene
<molecular biology> Gene or genes coding for the Joining segment of polypeptide chain which links the V (variable regions) to the C (constant) regions of both Light and Heavy chains of immunoglobulins. During lymphoid development the DNA is rearranged so that the V genes are linked to the J region sequences. ... (18 Nov 1997) ...

J point
The point marking the end of the QRS complex and the beginning of the S or T wave in the electrocardiogram. ... Synonym: ST junction. ... (05 Mar 2000) ...

J region
<molecular biology> The polypeptide chains coded for by J genes. ... (18 Nov 1997) ...

J-sella deformity
Pear-shaped or J-shaped deformity of sella turcica caused by increased pressure on growing sphenoid bone; noted in the mucopolysaccharide storage diseases. ... (05 Mar 2000) ...

j-shaped sella
<radiology> Cretinism (hypothyroidism), optic glioma, neurofibromatosis, Hurler syndrome (MPS I), mild arrested hydrocephalus, normal variant ... (12 Dec 1998) ...

jaagsiekte
Synonym: pulmonary adenomatosis of sheep. ... Origin: Afrikaans, drive sickness ... (05 Mar 2000) ...

jabiru
<ornithology> One of several large wading birds of the genera Mycteria and Xenorhynchus, allied to the storks in form and habits. ... The American jabiru (Mycteria Americana) is white, with the head and neck black and nearly bare of feathers. The East Indian and Australian (Xenorhynchus Australis) has the neck, head, and back covered with glos …

Jaboulay pyloroplasty
A side-to-side gastroduodenostomy, useful when the pylorus and proximal duodenum are extensively scarred or indurated by peptic ulcer disease. ... (05 Mar 2000) ...

Jaboulay, Mathieu
<person> French surgeon, 1860-1913. ... See: Jaboulay pyloroplasty, Jaboulay's amputation. ... (05 Mar 2000) ...

Jaboulay's amputation
Synonym for hemipelvectomy ... <procedure> Amputation of a lower limb through the sacroiliac joint. ... (12 Dec 1998) ...

jacana
<ornithology> Any of several wading birds belonging to the genus Jacana and several allied genera, all of which have spurs on the wings. They are able to run about over floating water weeds by means of their very long, spreading toes. Called also surgeon bird. ... The most common South American species is Jacana spinosa. The East Indian or phe …

Jaccard coefficient
<zoology> An association coefficient used in numerical taxonomy, it is the proportion of characters that match, excluding those that both organisms lack. ... (12 Jan 1998) ...

Jaccoud, Francois Sigismond
<person> French physician, 1830-1913. ... See: Jaccoud's arthritis, Jaccoud's arthropathy. ... (05 Mar 2000) ...

Jaccoud's arthritis
A rare form of chronic arthritis, reported to occur after attacks of acute rheumatic fever, characterised by an unusual form of bone erosion of the metacarpal heads and by ulnar deviation of the fingers; it resembles rheumatoid arthritis, but with less overt inflammation, and rheumatoid factor is absent. ... Synonym: Jaccoud's arthropathy. ... (05 Ma …

Jaccoud's arthropathy
Synonym for Jaccoud's arthritis ... A rare form of chronic arthritis, reported to occur after attacks of acute rheumatic fever, characterised by an unusual form of bone erosion of the metacarpal heads and by ulnar deviation of the fingers; it resembles rheumatoid arthritis, but with less overt inflammation, and rheumatoid factor is absent. ... Synony …

jack
<marine biology> Young salmon, usually a male, that matures precociously. ... (12 Jan 1998) ...

jackal
1. <zoology> Any one of several species of carnivorous animals inhabiting Africa and Asia, related to the dog and wolf. They are cowardly, nocturnal, and gregarious. They feed largely on carrion, and are noted for their piercing and dismal howling. ... The common species of Southern Asia (Canis aureus) is yellowish gray, varied with brown on t …