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lymphatic vessels |
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vessel /ves·sel/ (ves´'l) any channel for carrying a fluid, such as blood or lymph. blood vessel one of the vessels conveying the blood, comprising arteries, capillaries, and veins. chyliferous vessel lacteal (2). collateral vessel 1. a vessel that parallels another vessel, nerve, or other structure. 2. a vessel important in establishing and maintaining a collateral circulation. great vessels the large vessels entering the heart, including the aorta, the pulmonary arteries and veins, and the venae cavae. lacteal vessel lacteal (2). lymphatic vessels the capillaries, collecting vessels, and trunks that collect lymph from the tissues and carry it to the blood stream. nutrient vessels vessels supplying nutritive elements to special tissues, as arteries entering the substance of bone or the walls of large blood vessels. Lymphatic vessels Vessels that carry a fluid called lymph from the tissues to the bloodstream. Mentioned in: Decompression Sickness lymphatic vessels Etymology: L, lympha, water, vascellum, little vase Fine, thin-walled, transparent valved channels distributed through most tissues. They are often distinguished by their beaded appearance, which is caused by an irregular lumen. The collecting branches form two systems, one generally running with the superficial veins and the other below the deep fascia and including the intestinal lacteals. Lymphatics resemble veins but have more valves, have thinner walls, and contain lymph nodes. They drain through a thoracic duct and a right lymphatic duct into the venous system near the base of the neck. They include three layers: intima, media, and adventitia. lymphatic vessels, n.pl See lymphatic system. See also vessels, afferent and vessels, efferent. lymphatic, lymphoid 1. pertaining to lymph or to a lymphatic vessel. 2. a lymphatic vessel. lymphatic aplasia causes distention of other lymphatics where lymph flow is blocked and local edema. lymphatic ducts the two larger vessels into which all lymphatic vessels converge. The right lymphatic duct joins the venous system at the junction of the right jugular and subclavian veins and carries lymph from the cranial right side of the body. The left lymphatic duct, or thoracic duct, enters the circulatory system at the junction of the left jugular and subclavian veins; it returns lymph from the cranial left side of the body and caudal to the diaphragm. lymphatic enlargement includes distention with lymph as in lymphangiectasia, or thickened as in cutaneous tuberculosis. lymphatic flow obstruction by local compression, congenital, segmental aplasia, lymphangitis, lymphadenitis. lymphatic follicle see lymph nodule; may be primary or secondary. inherited lymphatic obstruction edema inherited as a single recessive in Ayrshire and Hereford cattle; calves are edematous, locally or generally at birth and do not improve; the defect is in aplasia of lymph vessels and nodes. lymphatic leukemia see lymphatic leukemia. lymphatic lumbar trunks a plexus of lymphatics on the abdominal roof that drain into the cisterna chyli. lymphatic nodule see lymph nodule. primary lymphatic organs see lymphoid organs. secondary lymphatic organs see lymphoid organs. lymphatic system the lymphatic vessels and lymphoid tissue, considered collectively. See also circulatory system. lymphatic tissue see lymphoid tissue. lymphatic vessel obstruction occurs as a result of pressure from nearby tumors or other space-occupying lesions, because of hypoplasia of lymph nodes in the fetus, in extensive calcinosis, e.g. in Solanum malacoxylon poisoning and in horses not getting sufficient exercise. Called also lymphangiectasia. lymphatic vessels the capillaries, collecting vessels, and trunks that collect lymph from the tissues and carry it to the bloodstream; called also lymphatics. Patient discussion about lymphatic vessels. Q. I have all but one of the symptoms on the list of symptoms for lymphatic cancer. Could this be it? My dad coincediencely has the same but one symptoms makes no sense? A. Here's a video I found about lymphoma that can give more information about the subject matter. Read more or ask a question about lymphatic vesselshttp://www.youtube.com/watch?v=Cdl2JhhTfYc How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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3) The pathogenesis of the cyst may involve thrombosis of lymphatic vessels following sinus inflammation. Despite the hypothetical spread of SFG rickettsiae from the site of tick feeding through lymphatic vessels to regional lymph nodes, regional lymphadenopathy is not a typical feature of RMSF. They're small enough to migrate rapidly through lymphatic vessels, mimicking how cancer cells might spread from a tumor to lymph nodes, yet large enough to stay inside the vessels and nodes. |
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