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


thyrotropic
Stimulating or nurturing the thyroid gland. ... Synonym: thyrotrophic. ... Origin: thyro-+ G. Trope, a turning ... (05 Mar 2000) ...

thyrotropic hormone
Synonym for thyrotropin ... thyroid stimulating hormone ...

thyrotropin
Synonym for thyroid stimulating hormone ... <endocrinology> Polypeptide hormone (28 kD), secreted by the anterior pituitary gland, that activates cyclic AMP production in thyroid cells leading to production and release of the thyroid hormones (T4 and T3). T4 and T3 blood levels feedback on the pituitary gland and decrease thyroid stimulating h …

thyrotropin resistance
An autosomal recessive disorder in which the thyrocytes are unresponsive to thyrotropin. ... Compare: pseudohypoparathyroidism. ... (05 Mar 2000) ...

thyrotropin-producing adenoma
<tumour> A rare pituitary adenoma usually associated with hypo-or hyperthyroidism. ... (05 Mar 2000) ...

thyrotropin-releasing factor
Former name for thyrotropin-releasing hormone. ... (05 Mar 2000) ...

thyrotropin-releasing hormone
Synonym for thyroliberin ... <protein> See thyrotrophic releasing hormone. ... (18 Nov 1997) ...

thyroxine
<drug, endocrinology> Thyroid hormone. ... (18 Nov 1997) ...

thyroxine sodium
A preparation obtained by the action of a limited amount of sodium carbonate upon thyroxine; it contains between 61 and 65% of iodine. ... See: sodium levothyroxine, sodium liothyronine. ... (05 Mar 2000) ...

thyroxine-binding globulin
An alpha-globulin of blood with a strong binding affinity for thyroxine; triiodothyronine is bound to it much less firmly; a deficiency or excess of this protein may occur as a rare benign X-linked disorder. ... Synonym: thyroxine-binding protein. ... (05 Mar 2000) ...

thyroxine-binding protein
Synonym for thyroxine-binding globulin ... An alpha-globulin of blood with a strong binding affinity for thyroxine; triiodothyronine is bound to it much less firmly; a deficiency or excess of this protein may occur as a rare benign X-linked disorder. ... Synonym: thyroxine-binding protein. ... (05 Mar 2000) ...

thyroxine-binding proteins
A group of proteins that includes thyroxine-binding globulin, a glycoprotein that serves as the major and specific carrier of thyroxine in plasma, accounting for 70-75% of the bound thyroxine; thyroxine-binding prealbumin, an albumin that serves as the secondary carrier, accounting for between 20 and 25% of the bound thyroxine; and serum albumin, w …

thyrse
A branched inflorescence in which the main main stem is indeterminate and the lateral branches determinate in their growth. ... (09 Oct 1997) ...

thyrseus
A panicle-like inflorescence consisting of a slender indeterminate main axis with lateral axes determinate, i.e., cymose. ... (09 Oct 1997) ...

thyrsus
Origin: L, fr. Gr. Cf. Torso. ... 1. A staff entwined with ivy, and surmounted by a pine cone, or by a bunch of vine or ivy leaves with grapes or berries. It is an attribute of Bacchus, and of the satyrs and others engaging in Bacchic rites. 'A good to grow on graves As twist about a thyrsus.' (Mrs. Browning) 'In my hand I bear The thyrsus, tipped w …

thysanoptera
<zoology> A division of insects, considered by some writers a distinct order, but regarded by others as belonging to the Hemiptera. They are all of small size, and have narrow, broadly fringed wings with rudimentary nervures. most of the species feed upon the juices of plants, and some, as those which attack grain, are very injurious to crops …

Thysanosoma actinoides
Fringed tapeworm of sheep, a relatively short, thick tapeworm (family Anocephalidae) in which the posterior borders of the proglottids are fringed. It inhabits the small intestine, but often invades the bile ducts and causes many livers to be condemned for human food. It is essentially nonpathogenic and is common in stock-raising countries, where i …

thysanura
<zoology> An order of wingless hexapod insects which have setiform caudal appendages, either bent beneath the body to form a spring, or projecting as bristles. It comprises the Cinura, or bristletails, and the Collembola, or springtails. Called also Thysanoura. See Lepisma, and Podura. ... Origin: NL, fr. Gr. Fringe + tail. ... Source: Websters …

Ti
The delay time between the inverting pulse and the 'read' pulse in the inversion recovery experiment, in magnetic resonance imaging. ... Symbol for titanium. ... (05 Mar 2000) ...

Ti plasmid
<molecular biology> Plasmid of Agrobacterium tumefaciens, transferred to higher plant cells in crown gall disease, carrying the T DNA that is incorporated into the plant cell genome. Used as a vector to introduce foreign DNA into plant cells. ... (18 Nov 1997) ...

TIA
Synonym for transient ischaemic attack ... A transient ischaemic attack is a temporary paralysis, numbness, speech difficulty or other neurologic symptoms that start suddenly and recovers within 24 hours (typically resolve over several hours). ... See: neurologic symptoms, stroke. ... Acronym: TIA ... (26 Mar 1998) ...

tiapride
<chemical> Benzamide derivative with dopamine antagonist actions similar to sulpiride. It has been used as an antipsychotic and in the treatment of various movement disorders. ... Pharmacological action: anti-dyskinesia agents, antipsychotic agents, dopamine antagonists. ... Chemical name: Benzamide, N-(2-(diethylamino)ethyl)-2-methoxy-5-(methy …

TIBC
Synonym for total iron binding capacity ... <biochemistry, haematology> A test that measures indirectly the transferrin level in the bloodstream. ... Transferrin is a protein that carries iron in the body. Normal values are 240 to 450 mcg/dl. This test is used to evaluate anaemia. Greater than normal total iron binding capacity can be seen in: …

tibet
A country of central asia, nominally an autonomous region within communist china. It first came under chinese control during the manchu dynasty in 1720 and was generally closed to foreigners until late in the nineteenth century. Tibetans are an ancient race of mongolian type and their ruler is the dalai lama. Buddhism was introduced in the seventh …

tibia
<anatomy> The large bone between the knee and foot that supports 5/6 of the body weight (fibula supports 1/6). ... (27 Sep 1997) ...

tibia valga
Synonym for genu valgum ... A deformity marked by lateral angulation of the leg in relation to the thigh. ... Synonym: knock-knee, tibia valga. ... (05 Mar 2000) ...

tibia vara
<radiology> (Blount disease) ... Common, causes bowlegs in kids, possibly due to ischemic necrosis, associated with early walking Findings: bilateral tibia vara (bowleggedness), abnormal medial aspect of proximal tibia, small epiphysis, beaked metaphysis ... (12 Dec 1998) ...

tibiad
In a direction toward the tibia. ... Origin: tibia + L. Ad, to ... (05 Mar 2000) ...

tibial arteries
The anterior and posterior arteries created at the bifurcation of the popliteal artery. The anterior tibial artery begins at the lower border of the popliteus muscle and lies along the tibia at the distal part of the leg to surface superficially anterior to the ankle joint. Its branches are distributed throughout the leg, ankle, and foot. The poste …

tibial border of foot
Synonym for medial border of foot ... The inner border of the foot extending from heel to the great toe. ... Synonym: margo medialis pedis, margo tibialis pedis, tibial border of foot. ... (05 Mar 2000) ...

tibial bowing
<radiology> Anterior bowing, OI, hypophosphatasia, thanatophoric dwarfism, neurofibromatosis, may lead to if fractured, doesn't heal normally, posterior bowing, often bilateral, due to foetal malposition, fracture will heal normally ... (12 Dec 1998) ...

tibial collateral ligament
<anatomy> The broad fibrous band that passes from the medial epicondyle of the femur to the medial margin and medial surface of the tibia; the medial meniscus is attached to its deep surface; it is continuous with (a thickening of) the fibrous capsule of the knee joint. ... Synonym: ligamentum collaterale tibiale, medial ligament of knee. ... ( …

tibial communicating nerve
Synonym for medial sural cutaneous nerve ... <anatomy, nerve> Arises from the tibial in the popliteal space, passes down the calf between the two heads of the gastrocnemius and unites in the middle of the leg with the communicating branch of the common peroneal to form the sural nerve, distributed to the skin of the distal and lateral surfaces …

tibial crest
Synonym for anterior border of tibia ... The sharp subcutaneous ridge of the tibia that extends from the tuberosity to the anterior part of the medial malleolus. ... Synonym: margo anterior tibiae, anticnemion, shin, tibial crest. ... (05 Mar 2000) ...

tibial intertendinous bursa
Synonym for anserine bursa ... <anatomy> The bursa between the tibial collateral ligament of the knee joint and the tendons of the sartorius, gracilis, and semitendinosus muscles. ... Synonym: bursa anserina, tibial intertendinous bursa. ... (05 Mar 2000) ...

tibial nerve
<anatomy, nerve> The medial terminal branch of the sciatic nerve. The tibial nerve fibres originate in lumbar and sacral spinal segments (l4 to s2). They supply motor and sensory innervation to parts of the calf and foot. ... (12 Dec 1998) ...

tibial phenomenon
Synonym for Strumpell's phenomenon ... Dorsal flexion of the great toe, sometimes of the entire foot, in a paralysed limb when the extremity is drawn up against the body, flexing both knee and hip. ... Synonym: tibial phenomenon. ... (05 Mar 2000) ...

tibial tuberosity
An oval elevation on the anterior surface of the tibia about 3 cm distal to the articular surface, giving attachment at its distal part to the patellar ligament. ... Synonym: tuberositas tibiae. ... (05 Mar 2000) ...

tibiale posticum
Synonym for os tibiale posterius ... Os tibiale posticum, a sesamoid bone in the tendon of the tibialis posterior muscle, occasionally fused with the tuberosity of the navicular. ... Synonym: tibiale posticum. ... (05 Mar 2000) ...

tibialgia
Pain in the shin. ... Origin: tibia + G. Algos, pain ... (05 Mar 2000) ...

tibialis
Synonym: tibial. ... Origin: L. ... (05 Mar 2000) ...

tibialis anterior
<anatomy, muscle> Origin, upper two-thirds of lateral surface of tibia, interosseous membrane, and intermuscular septum; insertion, medial cuneiform and base of first metatarsal; action, dorsiflexion and inversion of foot; nerve supply, deep peroneal. ... Synonym: musculus tibialis anterior, anterior tibial muscle, musculus tibialis anticus.
tibialis posterior
<anatomy, muscle> Origin, soleal line and posterior surface of tibia, the head and shaft of the fibula between the medial crest and interosseous border, and the posterior surface of interosseous membrane; insertion, navicular, three cuneiform, cuboid, and second, third, and fourth metatarsal bones; action, plantar flexion and inversion of foo …

tibio-
<anatomy, prefix> A combining form used in anatomy to indicate connection with, or relation to, the tibia; as, tibiotarsus, tibiofibular. ... (29 Oct 1998) ...

tibio-talar slant
<radiology> Juvenile rheumatoid arthritis, sickle-cell disease, haemophilia ... (12 Dec 1998) ...

tibiocalcaneal ligament
<anatomy> The part of the medial or deltoid ligament that extends from the medial malleolus to the sustentaculum tali of the calcaneus. ... Synonym: pars tibiocalcanea ligamenti medialis, calcaneotibial ligament, ligamentum calcaneotibiale, tibiocalcaneal part of deltoid ligament. ... (05 Mar 2000) ...

tibiocalcanean
Relating to the tibia and the calcaneus. ... (05 Mar 2000) ...

tibiofascialis
See entries under musculus tibiofascialis. ... (05 Mar 2000) ...

tibiofemoral
Relating to the tibia and the femur. ... (05 Mar 2000) ...

tibiofemoral index
The ratio obtained by multiplying the length of the tibia by 100 and dividing by the length of the femur. ... (05 Mar 2000) ...

tibiofibular
Relating to both tibia and fibula; denotes especially the joints and ligaments between the two bones. ... Synonym: peroneotibial, tibioperoneal. ... (05 Mar 2000) ...

tibiofibular articulation
Synonym for proximal tibiofibular joint ... The plane synovial joint between the lateral condyle of the tibia and the head of the fibula. ... Synonym: articulatio tibiofibularis, superior tibial articulation, superior tibiofibular joint, tibiofibular articulation. ... (05 Mar 2000) ...

tibiofibular ligament
<anatomy> See: anterior tibiofibular ligament, interosseous membrane of leg, posterior tibiofibular ligament. ... See: tibiofibular syndesmosis. ... (05 Mar 2000) ...

tibiofibular syndesmosis
The fibrous union of the tibia and fibula consisting of the interosseous membrane and the anterior, interosseous and posterior tibiofibular ligaments at the distal extremities of the bones. ... Synonym: syndesmosis tibiofibularis, distal tibiofibular joint, inferior tibiofibular joint, tibiofibular articulation. ... (05 Mar 2000) ...

tibionavicular
Relating to the tibia and the navicular bone of the tarsus. ... Synonym: tibioscaphoid. ... (05 Mar 2000) ...

tibionavicular ligament
<anatomy> The part of the medial or deltoid ligament that extends from the medial malleolus to the navicular bone. ... See: deltoid ligament. ... Synonym: pars tibionavicularis ligamenti medialis, ligamentum tibionaviculare, tibionavicular part of deltoid ligament. ... (05 Mar 2000) ...

tibioperoneal
Synonym for tibiofibular ... Relating to both tibia and fibula; denotes especially the joints and ligaments between the two bones. ... Synonym: peroneotibial, tibioperoneal. ... (05 Mar 2000) ...

tibioscaphoid
Synonym for tibionavicular ... Relating to the tibia and the navicular bone of the tarsus. ... Synonym: tibioscaphoid. ... (05 Mar 2000) ...

tic
<clinical sign> An involuntary compulsive, repetitive, stereotyped movement, resembling a purposeful movement because it is coordinated and involves muscles in their normal synergistic relationships, tics usually involve the face and shoulders. ... (18 Nov 1997) ...

tic de pensee
The habit of involuntarily giving expression to any thought that comes to mind. ... Origin: Fr. Of thought ... (05 Mar 2000) ...

tic disorders
Sudden, rapid, recurrent, nonrhythmic, stereotyped motor movements or vocalizations. All forms of tics may be exacerbated by stress and attenuated during absorbing activities. They are distinguished from other types of abnormal movements that may accompany general medical conditions. ... (12 Dec 1998) ...

tic douloureux
A disorder of trigeminal nerve (cranial nerve V) dysfunction. Also called tic douloureux. Characterised by excruciating paroxysms of pain in the lips, gums, cheek or chin, and, very rarely, in the distribution of the eye (ophthalmic division of the trigeminal nerve). ... (27 Sep 1997) ...

tic-tac rhythm
Synonym for embryocardia ... A condition in which the cadence of the heart sounds resembles that of the foetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial disease. ... Synonym: pendulum rhythm, tic-tac rhythm, tic-tac sounds. ... Origin: embryo-+ G. Kardia, heart ... (05 Mar 2000) ...

tic-tac sounds
Synonym for embryocardia ... A condition in which the cadence of the heart sounds resembles that of the foetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial disease. ... Synonym: pendulum rhythm, tic-tac rhythm, tic-tac sounds. ... Origin: embryo-+ G. Kardia, heart ... (05 Mar 2000) ...

ticarcillin
<chemical> 6-((carboxy-3-thienylacetyl)amino)-3,3-dimethyl-7-oxo-4- thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid. An antibiotic derived from penicillin similar to carbenicillin in action. ... Pharmacological action: penicillins. ... Chemical name: 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-((carboxy-3-thienylacetyl)amino)-3,3-d …

ticarcillin disodium
The disodium salt of 6-(alpha-carboxy-alpha-thien-3-ylacetamido)penicillanic acid; a bactericidal antibiotic useful in treating Pseudomonas aeruginosa infections and similar in effect to carbenicillin disodium. ... (05 Mar 2000) ...

tick
<zoology> Any one of numerous species of large parasitic mites which attach themselves to, and suck the blood of, cattle, dogs, and many other animals. When filled with blood they become ovate, much swollen, and usually livid red in colour. Some of the species often attach themselves to the human body. The young are active and have at first b …

tick control
Chemical, biological, or medical measures designed to prevent the spread of ticks or the concomitant infestations which result in tick-borne diseases. It includes the veterinary as well as the public health aspects of tick and mite control. ... (12 Dec 1998) ...

tick fever
Synonym for rocky mountain spotted fever ... <infectious disease> An acute febrile (feverish) disease initially recognised in the Rocky Mountain states, caused by Rickettsia rickettsii transmitted by hard-shelled (ixodid) ticks. Occurs only in the Western Hemisphere. ... The disease is characterised by sudden onset of headache, chills and fever …

tick infestation
Infestations with soft-bodied (argasidae) or hard-bodied (ixodidae) ticks. ... (12 Dec 1998) ...

tick paralysis
<infectious disease> An ascending paralysis caused by the continued presence of Dermacentor and Ixodes ticks attached to the occipital or upper neck region in humans. ... Reported in the western USA and British Columbia. The treatment consists of tick removal and supportive care. ... (27 May 1998) ...

tick pyaemia
A disease of lambs caused by the bacterium Staphylococcus aureus in association with infestations of the tick Ixodes ricinus and characterised by pyaemic abscesses in joints. ... (05 Mar 2000) ...

tick toxicoses
Toxicoses caused by toxic substances secreted by the salivary glands of ticks; include tick paralysis (neurotropic toxin), sweating sickness (dermotropic toxin), and rhipicephalus appendiculatus toxicosis (leukotropic toxin). ... (12 Dec 1998) ...

tick typhus
See Typhus, tick. ... (12 Dec 1998) ...

tick typhus, african
See Typhus, African tick. ... (12 Dec 1998) ...

tick typhus, queensland
See Typhus, Queensland tick. ... (12 Dec 1998) ...

tick-borne disease
<infectious disease> Diseases transmitted by ticks such as Rocky Mountain spotted fever, Q fever, and Lyme disease. ... (09 Oct 1997) ...

tick-borne diseases
Bacterial, viral, or parasitic diseases transmitted to humans and animals by the bite of infected ticks. The families ixodidae and argasidae contain many bloodsucking species that are important pests of man and domestic birds and mammals and probably exceed all other arthropods in the number and variety of disease agents they transmit. Many of the …

tick-borne encephalitis
1. (Central European subtype) tick-borne meningoencephalitis caused by a flavivirus closely related to the virus causing the Far Eastern type; it is transmitted by Ixodes ricinus, also by infected raw milk, especially that of goats. ... Synonym: biundulant meningoencephalitis, Central European tick-borne fever, diphasic milk fever, Russian spring-su …

tick-borne encephalitis virus
An arbovirus of the genus Flavivirus that occurs in Central Europe and the USSR in two subtypes, causing two forms of encephalitis in humans: tick-borne encephalitis (Central European subtype) and tick-borne encephalitis (Eastern subtype); the vectors are ticks of the genus Ixodes. ... Synonym: Russian spring-summer encephalitis virus, tick-borne vi …

tick-borne fever
A rickettsial disease of ruminants transmitted by the tick Ixodes ricinus in Europe and Rhipicephalus haemaphysaloides supina in India and characterised by pyrexia, depression, and anorexia. ... (05 Mar 2000) ...

tick-borne virus
Synonym for tick-borne encephalitis virus ... An arbovirus of the genus Flavivirus that occurs in Central Europe and the USSR in two subtypes, causing two forms of encephalitis in humans: tick-borne encephalitis (Central European subtype) and tick-borne encephalitis (Eastern subtype); the vectors are ticks of the genus Ixodes. ... Synonym: Russian sp …

ticker
One who, or that which, ticks, or produces a ticking sound, as a watch or clock, a telegraphic sounder, etc. 2. The heart. [Colloq] 3. (a) A stock ticker. (b) A news ticker, similar to a stock ticker, but used for printing news transmitted by wire. Ticker tape Tape from or designed to be used in a stock ticker, usu. Of paper and being narrow but lo …

tickling
Denoting a peculiar itching or tingling sensation caused by excitation of surface nerves, as of the skin by light stroking. ... (05 Mar 2000) ...

ticks
Blood-sucking acarid parasites of the suborder ixodedes, superfamily ixodoidea. The ticks are larger than their relatives, the mites. They penetrate the skin of their host by means of highly specialised, hooked mouth parts and feed on its blood. Many species can live for long periods, well over a year, between feedings. Ticks attack all groups of t …

ticlopidine
<chemical> 5-((2-chlorophenyl)methyl)-4,5,6,7-tetrahydrothieno(3,2-c)pyridine. Ticlopidine is an effective inhibitor of platelet aggregation. The drug has been found to significantly reduce infarction size in acute myocardial infarcts and is an effective antithrombotic agent in arteriovenous fistulas, aorto-coronary bypass grafts, ischemic he …

ticrynafen
<chemical> 2,3-dichloro-4-(2-thienylcarbonyl)phenoxyacetic acid. A novel diuretic with uricosuric action. It has been proposed as an antihypertensive agent. ... Pharmacological action: antihypertensive agents, diuretics, uricosuric agents. ... Chemical name: Acetic acid, (2,3-dichloro-4-(2-thienylcarbonyl)phenoxy)- ... (12 Dec 1998) ...

tics
<physiology> Spasmodic muscular contractions most commonly involving the face, mouth, eyes, head, neck or shoulder muscles. The movement often appears purposeful but is involuntary. ... (28 May 1998) ...

tid
<pharmacology> To be taken three times a day (each meal). ... (28 May 1998) ...

tidal
Of or pertaining to tides; caused by tides; having tides; periodically rising and falling, or following and ebbing; as, tidal waters. 'The tidal wave of deeper souls Into our inmost being rolls, And lifts us unawares Out of all meaner cares. ... <physiology> ' (Longfellow) Tidal air, the air which passes in and out of the lungs in ordinary bre …

tidal air
Synonym for tidal volume ... The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are tv or v with subscript t. ... (12 Dec 1998) ...

tidal amplitude
The magnitude of the difference in elevation between low and high tides at a particular point in a body of water. ... (09 Oct 1997) ...

tidal creek
Wetlands situated in channels where water flows both directions due to the tides. ... (09 Oct 1997) ...

tidal drainage
Drainage of the urinary bladder by means of an intermittent filling and emptying apparatus. ... (05 Mar 2000) ...

tidal influence
Exposure of intertidal land to periodic inundation of seawater twice daily due to the rising and falling of the tides. ... (09 Oct 1997) ...

tidal prism
The change in the volume of water covering an area, such as a wetland, between a low tide and the subsequent high tide. ... (09 Oct 1997) ...

tidal regime
The range of elevations in a wetland experiencing a specific pattern of tidal inundation. ... (09 Oct 1997) ...

tidal volume
The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are tv or v with subscript t. ... (12 Dec 1998) ...

tidal waters
Those waters that rise and fall in a predictable and measurable rhythm or cycle due to the gravitational pulls of the moon and sun. Tidal waters end where the rise and fall of the water surface can no longer by practically measured in a predictable rhythm due to masking by hydrologic, wind, or other effects.

tidal wave
The wave between the percussion wave and the dicrotic wave in the downward limb of the arterial pulse tracing. ... (05 Mar 2000) ...