释义 |
capillary
cap·il·lar·y C0084800 (kăp′ə-lĕr′ē)adj.1. Relating to or resembling a hair; fine and slender.2. Having a very small internal diameter: a capillary tube.3. Anatomy Of or relating to the capillaries.4. Physics Of or relating to capillarity.n. pl. cap·il·lar·ies 1. Anatomy One of the minute blood vessels that connect arterioles and venules. These blood vessels form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.2. A tube with a very small internal diameter. [From Latin capillāris, from capillus, hair.]capillary (kəˈpɪlərɪ) adj1. resembling a hair; slender2. (General Physics) (of tubes) having a fine bore3. (Anatomy) anatomy of or relating to any of the delicate thin-walled blood vessels that form an interconnecting network between the arterioles and the venules4. (General Physics) physics of or relating to capillarityn, pl -laries5. (Anatomy) anatomy any of the capillary blood vessels6. (General Physics) a fine hole or narrow passage in any substance[C17: from Latin capillāris, from capillus hair]cap•il•lar•y (ˈkæp əˌlɛr i) n., pl. -lar•ies, adj. n. 1. one of the minute blood vessels between the terminations of the arteries and the beginnings of the veins. 2. Also called cap′illary tube`. a tube with a small bore. adj. 3. pertaining to a capillary or capillaries. 4. pertaining to or occurring in or as if in a tube of fine bore. 5. resembling a strand of hair; hairlike. 6. a. pertaining to capillarity. b. of or pertaining to the apparent attraction or repulsion between a liquid and a solid. [1570–80; < Latin capillāris pertaining to hair <capill(us) hair] cap·il·lar·y (kăp′ə-lĕr′ē) Any of the tiny blood vessels that connect the smallest arteries to the smallest veins and form a network throughout the tissues of the body. The exchange of oxygen, nutrients, metabolic waste products, and carbon dioxide between the tissues and the blood all takes place in the capillaries.capillaryThe tiniest type of blood vessel, connecting an arteriole and a venule.ThesaurusNoun | 1. | capillary - a tube of small internal diameter; holds liquid by capillary actioncapillary tube, capillary tubingthermometer - measuring instrument for measuring temperaturetube, tubing - conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases | | 2. | capillary - any of the minute blood vessels connecting arterioles with venulescapillary vesselglomerulus - a small intertwined group of capillaries in the malpighian body; it filters the blood during urine formationtomentum cerebri, tomentum - a network of tiny blood vessels between the cerebral surface of the pia mater and the cerebral cortexblood vessel - a vessel in which blood circulates | Adj. | 1. | capillary - of or relating to hair | | 2. | capillary - long and slender with a very small internal diameter; "a capillary tube"hairlikethin - of relatively small extent from one surface to the opposite or in cross section; "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint" | Translationscapillary (kəˈpiləri) , ((American) ˈkӕpəleri) – plural capillaries – noun a tube with a very small diameter, especially (in plural) the tiny vessels that join veins to arteries. 毛細管 毛细管capillary
capillary (kăp`əlĕr'ē), microscopic blood vessel, smallest unit of the circulatory systemcirculatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as composed of two parts: the systemic circulation, which serves the body as a whole except for the lungs, and the ..... Click the link for more information. . Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arteriesartery, blood vessel that conveys blood away from the heart. Except for the pulmonary artery, which carries deoxygenated blood from the heart to the lungs, arteries carry oxygenated blood from the heart to the tissues. ..... Click the link for more information. ) and venules (smallest veinsvein, blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. The oxygen-depleted blood passes from the capillaries to the venules (small veins). ..... Click the link for more information. ). Through the thin capillary walls, which are composed of a single layer of cells, the nutritive material and oxygen in the blood pass into the body tissues, and waste matter and carbon dioxide in turn are absorbed from the tissues into the bloodstream.capillary[′kap·ə‚ler·ē] (anatomy) The smallest vessel of both the circulatory and lymphatic systems; the walls are composed of a single cell layer. (geology) A fissure or a crack in a formation which provides a route for flow of water or hydrocarbons. capillary1. (of tubes) having a fine bore 2. Anatomy of or relating to any of the delicate thin-walled blood vessels that form an interconnecting network between the arterioles and the venules 3. Physics of or relating to capillarity 4. Anatomy any of the capillary blood vessels 5. a fine hole or narrow passage in any substance capillary
capillary [kap´ĭ-lar″e] 1. pertaining to or resembling a hair.2. in the circulatory system," >circulatory system, one of the minute vessels connecting arterioles and venules, the walls of which act as a semipermeable membrane for interchange of various substances between the blood and tissue fluid. Capillary walls consist of thin endothelial cells through which body fluids and dissolved substances can pass. At the arterial end, the blood pressure within the capillary is higher than the pressure in the surrounding tissues, and the blood fluid and some dissolved substances pass outward through the capillary wall. At the venous end, the pressure within the tissues is higher and waste material and fluids from the tissues pass into the capillary, to be carried away for disposal.Capillary. From Applegate, 2000.arterial capillary a vessel lacking complete coats, intermediate between an arteriole and a capillary. Called also precapillary.venous capillary a type of minute vessel that lacks a muscular coat and is intermediate between a venule and a capillary. Called also postcapillary.cap·il·lar·y (kap'i-lār-ē), [TA] 1. Resembling a hair; fine; minute. 2. A capillary vessel; for example, blood capillary, lymph capillary. Synonym(s): vas capillare [TA], capillary vessel3. Relating to a blood or lymphatic capillary vessel. [L. capillaris, relating to hair] capillary (kăp′ə-lĕr′ē)adj.1. Relating to or resembling a hair; fine and slender.2. Having a very small internal diameter: a capillary tube.3. Anatomy Of or relating to the capillaries.4. Physics Of or relating to capillarity.n. pl. capillar·ies 1. Anatomy One of the minute blood vessels that connect arterioles and venules. These blood vessels form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.2. A tube with a very small internal diameter.capillary Any of the microscopic blood vessels that connect minute arterioles and equally minute venules. Capillaries form a network throughout the body and are the functional unit of general circulation. Capillary walls are semipermeable and allow passage of O2, glucose and other nutrients from the blood into the cells, and waste products (CO2, NH3) into the blood to be excreted or eliminated through the lungs.cap·il·lar·y (kap'i-lar-ē) [TA] 1. Resembling a hair; fine; minute. 2. A capillary vessel; e.g., blood capillary, lymph capillary. 3. Relating to a blood or lymphatic capillary vessel. [L. capillaris, relating to hair]capillary (kap′ĭ-ler″ē) plural.capillaries [L. capillaris, hairlike] 1. Any of the minute blood vessels, averaging 0.008 mm in diameter, that connect the ends of the smallest arteries (arterioles) with the beginnings of the smallest veins (venules). 2. Pert. to a hair; hairlike. arterial capillaryOne of the very small vessels that are the terminal branches of the arterioles or metarterioles.bile capillaryOne of the intercellular biliary passageways that convey bile from liver cells to the interlobular bile ducts. Also called bile canaliculus. blood capillaryOne of the minute blood vessels that convey blood from the arterioles to the venules and form an anastomosing network that brings the blood into intimate relationship with the tissue cells. Its wall consists of a single layer of squamous cells (endothelium) through which oxygen diffuses to the tissue and products of metabolic activity enter the bloodstream. Blood capillaries average about 8 μm in diameter. LYMPHATIC CAPILLARYlymphatic capillaryA thin-walled lymphatic vessel at the beginning of a branch of the lymphatic system. Lymphatic capillaries have closed ends, but have no basement membranes and are more permeable than blood capillaries. Fluids, salts, proteins, large molecules, particles, debris, microorganisms, and migrating cells can pass from the interstitial spaces into lymphatic capillaries. Lymphatic capillaries lead to larger lymphatics that transport the lymph to lymph nodes. See: illustrationsecretory capillaryAny of the very small canaliculi that are part of the secretory outflow path receiving secretion discharged from gland cells.venous capillaryOne of the minute vessels that convey blood from a capillary network into the small veins (venules). capillary The smallest and most numerous of all the blood vessels. Capillaries form dense networks between the arteries and the veins, and it is only in the capillary beds that interchange of oxygen, carbon dioxide and nutrients can take place with the cells.Fig. 88 Capillary . Exchange route of materials between blood and tissues.Fig. 87 Capillary . The structure of a capillary vessel. capillary one of many minute blood vessels (5–20 μm diameter) which connect ARTERIOLES and VENULES in vertebrate tissues allowing a high level of exchange of materials to take place between blood and tissues via the interstitial fluid or LYMPH. See Fig. 87 . Capillary walls are made up of a single layer of epithelial cells which are flexible, allowing changes in diameter with changing blood pressure. See Fig. 88 . Capillaries are efficient because - they are thin-walled, with narrow diameters giving a high surface-area-to-volume ratio,
- they are very numerous, forming a CAPILLARY BED, and
- blood flow is slow, allowing maximum time for exchange.
CapillaryThe tiniest blood vessels with the smallest diameter. These vessels receive blood from the arterioles and deliver blood to the venules.Mentioned in: Preeclampsia and Eclampsiacap·il·lar·y (kap'i-lar-ē) [TA] 1. Resembling a hair; fine; minute. 2. A capillary vessel; e.g., blood capillary, lymph capillary. [L. capillaris, relating to hair]capillary Related to capillary: capillary matting, capillary tube, capillary attraction, capillary bed, Capillary refillSynonyms for capillarynoun a tube of small internal diameterSynonyms- capillary tube
- capillary tubing
Related Wordsnoun any of the minute blood vessels connecting arterioles with venulesSynonymsRelated Words- glomerulus
- tomentum cerebri
- tomentum
- blood vessel
adj long and slender with a very small internal diameterSynonymsRelated Words |