| mucous patch | An oval to round, yellow-gray to white, membrane-covered lesion or lesions occurring on the mucous membranes; usually seen in secondary syphilis. (05 Mar 2000) |
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| mucous plaque | In dentistry, a mass of filamentous microorganisms and large variety of smaller forms attached to the surface of a tooth which, depending on bacterial activity and environmental factors, may give rise to caries, calculus, or inflammatory changes in adjacent tissue. Synonym: dental plaque, mucous plaque, mucinous plaque. (05 Mar 2000) |
| mucous plug | A mass of mucus and cells filling the cervical canal between periods or during pregnancy; a mass of mucous occluding a main or lobar bronchus. (05 Mar 2000) |
| mucous polyp | An adenomatous polyp in which conspicuous amounts of mucin are formed, a polypoid cyst that contains mucus. (05 Mar 2000) |
| mucous rale | A bubbling rale heard on auscultation over bronchial tubes containing mucus. (05 Mar 2000) |
| mucous sheath of tendon | A sheath of synovial membrane enveloping certain of the tendons; it contains a small amount of synovial fluid. Synonym: vagina synovialis tendinis, mucous sheath of tendon, theca tendinis, vagina mucosa tendinis, vaginal synovial membrane. (05 Mar 2000) |
| surface mucous cells of stomach | Cell's lining the gastric surface and foveolae; a glycoprotein product at the apical end of each cell is secreted and forms a mucous protective film. Synonym: theca cells of stomach. (05 Mar 2000) |
| analog-digital conversion | The process of converting analog data such as continually measured voltage to discrete, digital form. (12 Dec 1998) |
| angiography, digital subtraction | A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitised image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues. (12 Dec 1998) |
| annular part of fibrous digital sheath | One of the two circular fibrous bands of the fibrous sheaths of the fingers and toes attached to the shaft of the proximal and middle phalanges. Synonym: pars annularis vaginae fibrosae, annular pulley, annulus of fibrous sheath, ligamentum annulare digitorum. (05 Mar 2000) |
| radiography, dental, digital | A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from X-ray film or any other detector. (12 Dec 1998) |
| palmar digital veins | Paired venae comitantes of the proper and common digital arteries that empty into the superficial palmar venous arch. Synonym: venae digitales palmares. (05 Mar 2000) |
| recurring digital fibromas of childhood | Multiple fibrous flesh-coloured nodules on the extensor aspect of the terminal phalanges of adjacent digits of infants and young children which often recur after attempted excision, do not metastasize, and may spontaneously regress in two to three years; composed of spindle cells containing cytoplasmic inclusions believed to be derived from myofibrils. Synonym: infantile digital fibromatosis. (05 Mar 2000) |
| collateral digital artery | <anatomy, artery> Terminal branches of the common palmar digital artery that pass to the side of each finger. Synonym: arteria digitalis palmaris propria, collateral digital artery, digital collateral artery. (05 Mar 2000) |
| common palmar digital artery | <anatomy, artery> One of three arteries arising from the superficial palmar arch and running to the interdigital clefts where each divides into two proper palmar digital arteries. Synonym: arteria digitalis palmaris communis. (05 Mar 2000) |