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

ulcer
<dermatology> A local defect or excavation, of the surface of an organ or tissue, which is produced by the sloughing of inflammatory necrotic tissue. ... Origin: L. Ulcus, Gr. Helkosis ... (18 Nov 1997) ...

ulcer, duodenal
An ulcer (a hole in the lining) of the duodenum (the first portion of the small intestine). Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity of ulceration. Diagnosis is made with barium X-ray or endoscopy. Complicatio …

ulcer, gastric
A hole in the lining of the stomach corroded by the acidic digestive juices which are secreted by the stomach cells. Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity of ulceration. Diagnosis is made with barium X-ray …

ulcer, oesophageal
A hole in the lining of the oesophagus (tube-like organ leading from the throat to the stomach) corroded by the acidic digestive juices secreted by the stomach cells. Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity o …

ulcer, peptic
A peptic ulcer is a hole in the lining of the stomach, duodenum, or oesophagus. A peptic ulcer of the stomach is called a gastric ulcer, an ulcer of the duodenum is a duodenal ulcer, and a peptic ulcer of the oesophagus is an oesophageal ulcer. A peptic ulcer occurs when the lining of these organs is corroded by the acidic digestive juices which ar …

ulcera
Plural of ulcus. ... (05 Mar 2000) ...

ulcerate
To form an ulcer. ... (05 Mar 2000) ...

ulcerated
Having undergone ulceration. ... (05 Mar 2000) ...

ulcerating granuloma of pudenda
Synonym for granuloma inguinale ... <disease, microbiology> A rare sexually transmitted disease that is caused by Calymmatobacterium granulomatis. ... This infection is more common in the tropical and subtropical areas such as India, Guyana and new Guinea. There are approximately 100 cases reported annually in the United States. Men are affecte …

ulceration
1. <pathology> The formation or development of an ulcer. ... 2. An ulcer. ... Origin: L. Ulceratio ... (18 Nov 1997) ...

ulcerative
Relating to, causing, or marked by an ulcer or ulcers. ... (05 Mar 2000) ...

ulcerative colitis
<pathology> Inflammation of the colon and rectum: cause unclear, although there are often antibodies to colonic epithelium and E. Coli strain 0119 B14. ... (18 Nov 1997) ...

ulcerative dermatosis
An infectious disease of sheep characterised by crusted ulcers on the skin of the face, feet, and external genitalia; thought to be caused by the orf virus. ... Synonym: lip and leg ulceration. ... (05 Mar 2000) ...

ulcerative enteritis
An enteritis of quail and chickens caused by the bacterium Clostridium colinum. ... (05 Mar 2000) ...

ulcerative lymphangitis
<pathology> A disease of horses and cattle caused by bacteria in the genus Corynebacterium, it causes infection and swelling in the lymph nodes and ulceration of wounds (typically abrasions on the leg) that are the site of entry for the bacteria. ... (09 Oct 1997) ...

ulcerative pharyngitis
Inflammation of the pharynx marked by ulceration of the mucosa; may have a viral aetiology. ... (05 Mar 2000) ...

ulcerative stomatitis
Synonym for aphtha ... <dermatology> Roundish pearl-coloured specks or flakes in the mouth, on the lips, etc, terminating in white sloughs, better known as thrush and the specks are called aphthae. ... Synonym: thrush, candidiasis. ... Origin: Sing. Of Aphthae. L, fr. Gr. (mostly in pl, Hipp) an eruption, thrush, fr. To set on fire, inflame. ... …

ulcerogenic
<pharmacology> Causing ulceration, leading to the production of ulcers. ... Origin: Gr. Gennan = to produce ... (18 Nov 1997) ...

ulceroglandular
Denoting a local ulceration at a site of infection followed by regional or generalised lymphadenopathy. ... (05 Mar 2000) ...

ulceromembranous
Relating to or characterised by ulceration and the formation of a false membrane. ... (05 Mar 2000) ...

ulceromembranous gingivitis
Synonym for necrotizing ulcerative gingivitis ... An acute or recurrent gingivitis of young and middle-aged adults characterised clinically by gingival erythema and pain, fetid odour, and necrosis and sloughing of interdental papillae and marginal gingiva which gives rise to a gray pseudomembrane; fever, regional lymphadenopathy, and other systemic …

ulceromembranous pharyngitis
Inflammation of the pharyngeal mucosa with membranous debris overlying the ulcerative lesions. ... (05 Mar 2000) ...

ulcers
An open sore in a body surface. ... Examples include oesophageal ulcers, peptic ulcers and decubitus ulcers (bed sores). ... (27 Sep 1997) ...

ulcus
Synonym: ulcer. ... Origin: L. ... (05 Mar 2000) ...

ulcus ambulans
Synonym for phagedenic ulcer ... <dermatology> A rapidly spreading ulcer attended by the formation of extensive sloughing. ... Synonym: perambulating ulcer, sloughing ulcer, ulcus ambulans. ... Origin: L. Phagedaena, Gr Phago, To eat. ... (05 Mar 2000) ...

ulcus cruris
<pathology> Ulcer of the foot ... (18 Nov 1997) ...

ulcus hypostaticum
Synonym for decubitus ulcer ... <dermatology> A chronic ulcer that appears in pressure areas in debilitated patients confined to bed or otherwise immobilised, due to a circulatory defect from the enhanced tissue pressure in high-contact areas, often occurring over a bony prominence (for example sacral decubitus). ... (27 Sep 1997) ...

ulcus terebrans
An obsolete term for an invasive basal cell carcinoma, usually around the eye, nose, or ear, and extending to underlying bony tissue. ... (05 Mar 2000) ...

ulcus venereum
<dermatology> The primary skin lesion of syphilis which begins at the site of infection after an interval of 10-30 days as a papule or red ulcerated skin lesion. ... (27 Sep 1997) ...

ulcus vulvae acutum
Synonym for Lipschutz' ulcer ... A simple acute ulceration of the vulva or lower vagina of nonvenereal origin. ... Synonym: ulcus vulvae acutum. ... (05 Mar 2000) ...

ulectomy
An obsolete synonym for cicatrectomy. ... Origin: G. Oule, scar, + ektome, excision ... (05 Mar 2000) ...

ulegyria
A defect of the cerebral cortex characterised by narrow and distorted gyri; may be congenital or the result of scars. ... Origin: G. Oule, scar, + gyros, ring ... (05 Mar 2000) ...

ulerythema
Scarring with erythema. ... Origin: G. Oule, scar, + erythema, redness of the skin ... Ulerythema ophryogenes, folliculitis of the eyebrows resulting in scarring and alopecia. ... (05 Mar 2000) ...

ulerythema sycosiforme
Synonym for lupoid sycosis ... A papular or pustular inflammation of the hair follicles of the beard, followed by punctuate scarring and loss of the hair. ... Synonym: ulerythema sycosiforme. ... Sycosis nuchae necrotisans, acne keloid on the back of the neck at the hairline. ... (05 Mar 2000) ...

uletomy
An obsolete synonym for cicatricotomy. ... Origin: G. Oule, scar, + tome, incision ... (05 Mar 2000) ...

ulex europaeus
A lectin that reacts specifically with alpha-l-fucose, used as a marker for endothelial cells in paraffin sections. ... (05 Mar 2000) ...

uliginous
<botany> Describes a plant that grows in a swamp or wetland. ... (09 Oct 1997) ...

Ullmann
Emerich, Hungarian surgeon, 1861-1937. ... See: Ullmann's line, Ullmann's syndrome. ... (05 Mar 2000) ...

Ullmann's line
The line of displacement in spondylolisthesis. ... (05 Mar 2000) ...

Ullmann's syndrome
<syndrome> A systemic angiomatosis due to multiple arteriovenous malformations. ... (05 Mar 2000) ...

Ullrich
Otto, German physician, 1894-1957. ... See: Morquio-Ullrich disease. ... (05 Mar 2000) ...

ulna
<anatomy> One of the bones that comprise the forearm. The largest aspect articulates with the humerus at the elbow joint and the smallest portion of the ulna articulates with the carpal bones in the wrist. ... (27 Sep 1997) ...

ulna fractures
Fractures of the larger bone of the forearm. ... (12 Dec 1998) ...

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

ulnar artery
<anatomy, artery> The larger of the two terminal branches of the brachial artery, beginning about one centimeter distal to the bend of the elbow. Like the radial artery, its branches may be divided into three groups corresponding to their locations in the forearm, wrist, and hand. ... (12 Dec 1998) ...

ulnar bursa
Synonym for common flexor sheath ... The synovial sheath that surrounds the eight tendons of the superficial and deep flexors of the digits of the hand as they pass through the carpal canal; it is commonly continuous with the digital sheath of the little finger. ... Synonym: vagina communis musculorum flexorum, ulnar bursa. ... (05 Mar 2000) ...

ulnar clubhand
Clubhand with angular deviation toward ulnar side of limb. ... See: manus vara. ... (05 Mar 2000) ...

ulnar collateral ligament
Synonym for ulnar collateral ligament of elbow ... The triangular ligament extending from the medial epicondyle of the humerus to the medial side of the coronoid process and olecranon of the ulna. ... Synonym: ligamentum collaterale ulnare, medial collateral ligament of elbow, ulnar collateral ligament. ... (05 Mar 2000) ...

ulnar collateral ligament of elbow
The triangular ligament extending from the medial epicondyle of the humerus to the medial side of the coronoid process and olecranon of the ulna. ... Synonym: ligamentum collaterale ulnare, medial collateral ligament of elbow, ulnar collateral ligament. ... (05 Mar 2000) ...

ulnar collateral ligament of wrist
A ligament that passes from the styloid process of the ulna to the pisiform and triquetrum. ... Synonym: ligamentum collaterale carpi ulnare, internal collateral ligament of the wrist, medial ligament of wrist. ... (05 Mar 2000) ...

ulnar eminence
An eminence smaller than the radial, on the ulnar side of the palmar aspect of the wrist, due to presence of the pisiform bone. ... Synonym: eminentia carpi ulnaris. ... (05 Mar 2000) ...

ulnar extensor muscle of wrist
Synonym for extensor carpi ulnaris ... <anatomy, muscle> Origin, lateral epicondyle of humerus (humeral head) and oblique line and posterior border of ulna (ulnar head); insertion, base of fifth metacarpal bone; action, extends and abducts wrist ulnarward; nerve supply, radial (posterior interosseous). ... Synonym: musculus extensor carpi ulnar …

ulnar flexor muscle of wrist
Synonym for flexor carpi ulnaris ... <anatomy, muscle> Origin, humeral head from medial condyle of humerus, ulnar head from olecranon and upper three-fifths of posterior border of ulna; insertion, pisiform bone, but is continued to the fifth metacarpal bone via the pisometacarpal ligament; action, flexes and abducts wrist ulnarward; nerve supp …

ulnar head
The name applied to a head of origin of a forearm muscle arising from the ulna. Nomina Antomica lists ulnar heads (caput ulnare...) of the following: 1) flexor carpi ulnaris muscle (... Musculi flexoris carpi ulnaris ); 2) pronator teres muscle (... Musculi pronatoris teritis ). ... Synonym: caput ulnare. ... (05 Mar 2000) ...

ulnar margin of forearm
Synonym for medial border of forearm ... An imaginary line extrapolated from the medial epicondyle of the humerus to the styloid process of the ulna, forming a border between the anterior and posterior surfaces. ... Synonym: margo medialis antebrachii, margo ulnaris antebrachii, ulnar margin of forearm. ... (05 Mar 2000) ...

ulnar nerve
<anatomy, nerve> A major nerve of the upper extremity. In humans, the fibres of the ulnar nerve originate in the lower cervical and upper thoracic spinal cord (usually c7 to t1), travel via the medial cord of the brachial plexus, and supply sensory and motor innervation to parts of the hand and forearm. ... (12 Dec 1998) ...

ulnar nerve compression syndrome
<syndrome> A condition caused by compression or entrapment of the ulnar nerve. It may involve both sensory and motor problems and most often results from compression or entrapment of the ulnar nerve at the elbow (cubital tunnel syndrome). Compression of the nerve may occur during normal activities or as a complication of general anaesthesia.< …

ulnar notch
The concave surface on the medial side of the distal end of the radius which articulates with the head of the ulna. ... Synonym: incisura ulnaris. ... (05 Mar 2000) ...

ulnar reflex
Pronation and adduction of the hand caused by tapping the styloid process of the ulna. ... Synonym: pronator reflex. ... (05 Mar 2000) ...

ulnar styloid erosions
<radiology> Seen in rheumatoid arthritis, related to: triangular fibrocartilage, prestyloid recess (of joint space), extensor carpi ulnaris tendon ... (12 Dec 1998) ...

ulnar variance
<radiology> Ulna minus variance ulna shorter than radius increased frequency of avascular necrosis of lunate associated with DISI, ulna plus variance ulna longer than radius increased stress on triangular fibrocartilage ... (12 Dec 1998) ...

ulnar veins
Venae comitantes of the ulnar artery, continuing from those of the supericial palmar arch and joining with those of the radial artery to form the brachial veins in the cubital fossa. ... Synonym: venae ulnares. ... (05 Mar 2000) ...

ulnaris
Synonym: ulnar. ... Origin: Mod. L. ... (05 Mar 2000) ...

ulnen
Relating to the ulna independent of other structures. ... Origin: ulna + G. En, in ... (05 Mar 2000) ...

ulnocarpal
Relating to the ulna and the carpus, or to the ulnar side of the wrist. ... (05 Mar 2000) ...

ulnoradial
Relating to both ulna and radius; denoting the two articulations, ligaments, etc., between them. ... (05 Mar 2000) ...

ulo-
1. Scar, scarring. ... Origin: G. Oule ... 2. Obsolete the gums. ... See: gingivo-. ... Origin: G. Oulon ... 3. Curly. ... Origin: G. Oulo-, ouli-, woolly. ... (05 Mar 2000) ...

ulodermatitis
Inflammation of the skin resulting in destruction of tissue and the formation of scars. ... Origin: G. Oule, scar, + derma, skin, + -itis, inflammation ... (05 Mar 2000) ...

uloid
1. Resembling a scar. ... 2. A scarlike lesion due to a degenerative process in deeper layers of skin. ... Origin: G. Oule, scar + eidos, resemblance ... (05 Mar 2000) ...

ulotomy
An obsolete term for cicatricotomy. ... Origin: G. Oule, scar, + tome, incision ... (05 Mar 2000) ...

ulotrichous
Having curly hair. ... Compare: leiotrichous. ... Origin: G. Oulotrichos, curly haired, fr. Oulos, wooly, + thrix (trich-), hair ... (05 Mar 2000) ...

ultimate
1. Farthest; most remote in space or time; extreme; last; final. 'My harbor, and my ultimate repose.' (Milton) 'Many actions apt to procure fame are not conductive to this our ultimate happiness.' (Addison) ... 2. Last in a train of progression or consequences; tended toward by all that precedes; arrived at, as the last result; final. 'Those ultimat …

ultimate analysis
A description of a fuel's elemental composition as a percentage of the dry fuel weight. ... (05 Dec 1998) ...

ultimate principle
One of the chemical elements. ... (05 Mar 2000) ...

ultimate strength
The maximum stress achieved prior to failure of a component on a single application of the load. ... (05 Mar 2000) ...

ultimobranchial
In embryology, relating to the caudal pharyngeal pouch. ... Origin: L. Ultimus, last, + G. Branchia, gills ... (05 Mar 2000) ...

ultimobranchial body
A diverticulum from the fourth pharyngeal pouch of an embryo, regarded by some as a rudimentary fifth pharyngeal pouch and by others as a lateral thyroid primordium. The ultimobranchial bodies of lower vertebrates contain large amounts of calcitonin. In mammals the bodies fuse with the thyroid gland and are thought to develop into the parafollicula …

ultimobranchial pouch
A transient fifth pharyngeal pouch; it is now considered to be incorporated into the caudal pharyngeal complex, the cells of which become the parafollicular cells (C cells) of the thyroid. ... Uterovesical pouch, a pocket formed by the deflection of the peritoneum from the bladder to the uterus in the female. ... Synonym: excavatio vesicouterina, cav …

ultimum moriens
The right atrium of the heart, said to contract after the rest of the heart is still. ... Origin: L. The last thing dying ... (05 Mar 2000) ...

ultisols
<ecology> Highly weathered soils having significantly more clay in the B-horizon than in the A-horizon and having low base status, acidic soils common in the Southwest. ... (09 Oct 1997) ...

UlTma DNA polymerase
<enzyme> A thermostable DNA polymerase with putative proofreading activity ... Registry number: EC 2.7.7.- ... (26 Jun 1999) ...

ultra-
Excess, exaggeration, beyond. ... Origin: L. Beyond ... (05 Mar 2000) ...

ultrabrachycephalic
Denoting an extremely short skull, one with an index of at least 90. ... (05 Mar 2000) ...

ultracentrifugation
<procedure> Centrifugation at very high g forces: used to separate molecules for example mitochondrial from nuclear DNA on a caesium chloride gradient. ... (18 Nov 1997) ...

ultracentrifuge
A high-speed centrifuge (up to 100,000 rpm) by means of which large molecules, e.g., of protein or nucleic acids, are caused to sediment at practicable rates; used for determinations of molecular weights, separation of large molecules, criteria of homogeneity of large molecules, conformational studies, etc. ... (05 Mar 2000) ...

ultracytostome
Former name for micropore. ... Origin: ultra-+ G. Kytos, cell, + stoma, mouth ... (05 Mar 2000) ...

ultradian
Relating to biologic variations or rhythms occurring in cycles more frequent than every 24 hours. ... Compare: circadian, infradian. ... Origin: ultra-+ L. Dies, day ... (05 Mar 2000) ...

ultradian rhythm
See: ultradian. ... (05 Mar 2000) ...

ultradolichocephalic
Denoting a very long skull, one with a cephalic index of less than 65. ... (05 Mar 2000) ...

ultrafilter
A semipermeable membrane (collodion, fish bladder, or filter paper impregnated with gels) used as a filter to separate colloids and large molecules from water and small molecules, which pass through. ... (05 Mar 2000) ...

ultrafiltration
<procedure> Filtration under pressure. In the kidney, an ultrafiltrate is formed from plasma because the blood is at higher pressure than the lumen of the glomerulus. Also used experimentally to fractionate and concentrate solutions in the laboratory using selectively permeable artificial membranes. ... (18 Nov 1997) ...

ultrafiltration coefficient
The filtration coefficient of a semipermeable membrane. ... (05 Mar 2000) ...

ultrafiltration fermenter
An apparatus for continuous fermentation that is run inconjunctionwith a continuous microfiltration system to constantly remove thelow-molecular-weight product of the fermentation. ... (09 Oct 1997) ...

ultralente insulin
A form of zinc precipitated insulin in suspension in which the particle size is large, and thus release into the bloodstream after subcutaneous injection is slow; it can be mixed with other insulins having different particle sizes to achieve different durations of activity. Can be derived from porcine, bovine, or genetically engineered human type.< …

ultraligation
Ligation of a blood vessel beyond the point where a branch is given off. ... (05 Mar 2000) ...

ultramicroscope
<instrument, microscopy> A term applied to particles less than 0.1 ~m in diameter, hence too small to be truly resolved by the light micro- scope. Under the ultramicroscope they look like stars in the sky. Their differences in size are merely indicated by differences in brightness. ... (05 Aug 1998) ...

ultramicroscopic
Synonym for submicroscopic ... <optics> Particles which, although visible in the ultramicroscope, are too small to be resolved by visible light. This places their size between 0.2 Lm and 0.005 Lm. ... (05 Aug 1998) ...

ultramicrotome
A microtome used in cutting sections 0.1 um thick, or less, for electron microscopy. ... (05 Mar 2000) ...

ultramicrotomy
<procedure> The cutting of ultrathin sections for electron microscopy by use of an ultramicrotome. ... (05 Mar 2000) ...

ultramontanism
The principles of those within the Roman Catholic Church who maintain extreme views favoring the pope's supremacy; so used by those living north of the Alps in reference to the Italians; rarely used in an opposite sense, as referring to the views of those living north of the Alps and opposed to the papal claims. Cf. Gallicanism. ... Origin: Cf. F. U …