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Venous   Listen
adjective
Venous  adj.  
1.
(Anat.) Of or pertaining to a vein or veins; as, the venous circulation of the blood.
2.
Contained in the veins, or having the same qualities as if contained in the veins, that is, having a dark bluish color and containing an insufficient amount of oxygen so as no longer to be fit for oxygenating the tissues; said of the blood, and opposed to arterial.
3.
Marked with veins; veined; as, a venous leaf.
Venous leaf (Bot.), a leaf having vessels branching, or variously divided, over its surface.
Venous hum (Med.), a humming sound, or bruit, heard during auscultation of the veins of the neck in anaemia.
Venous pulse (Physiol.), the pulse, or rhythmic contraction, sometimes seen in a vein, as in the neck, when there is an obstruction to the passage of blood from the auricles to the ventricles, or when there is an abnormal rigidity in the walls of the greater vessels. There is normally no pulse in a vein.






Collaborative International Dictionary of English 0.48








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"Venous" Quotes from Famous Books



... intestines are considerably longer than in the Felidae, averaging about fifteen times the length of the body; the digestion is rapid. The bones are light and spongy, and the spine particularly flexible, from the amount of cartilage between the bones. They have a large venous cavity in the liver, and the lungs are capacious, the two combining to assist them in keeping under water; the blood is dark and abundant. The brain is large, and in quantity and amount of convolution exceeds that of the land Carnivores. Their hearing ...
— Natural History of the Mammalia of India and Ceylon • Robert A. Sterndale

... generated out of the materials brought from the alimentary canal by means of the vena portae. And all Harvey's predecessors further agree in the belief that only a small fraction of the total mass of the venous blood is conveyed by the vena arteriosa to the lungs and passes by the arteria venosa to the left ventricle, thence to be distributed over the body by the arteries. Whether some portion of the refined and "pneumatic" arterial ...
— The Great Events by Famous Historians, Volume 11 • Various

... the great hall, with its attendant vases and statuary, the visitor will not suspect that the pavement beneath his feet is underlaid by four miles of iron pipe four inches in diameter and weighing nearly three hundred tons. Through this immense arterial and venous system circulates the life-blood of the plants, hot water being the vehicle of warmth in winter. These invisible streams will flow when the brooks at the foot of the hill are sealed by frost and the plash of the open-air fountains ...
— Lippincott's Magazine of Popular Literature and Science, Vol. XVII. No. 101. May, 1876. • Various

... wounds inflicted during life and after death is found in the fact that a wound inflicted during life presents the appearances already described, whereas in a post-mortem incised wound only a small quantity of liquid venous blood is effused; the edges are close, yielding, inelastic; the blood is not effused into the cellular tissue, and there are no signs of vital reaction. The presence of inflammatory reaction or pus shows that the wound must have been inflicted some time before death, probably ...
— Aids to Forensic Medicine and Toxicology • W. G. Aitchison Robertson

... look that the blue-jackets of the service are usually distinguished by; but he was a veritable old salt, or "shell- back," none the less, sniffing of the ocean all over, and having his face seamed with those little venous streaks of pink (as if he indulged in a dab of rouge on the sly occasionally) which variegate the tanned countenances of men exposed to all the rigours of the elements, and who encounter with an equal mind the freezing blast ...
— Tom Finch's Monkey - and How he Dined with the Admiral • John C. Hutcheson

... incessantly going on. The nervous and muscular spasmodic contraction of the diseased anus and rectum, which in time become more or less permanently constricted, steadily increases the stagnation and engorgement of blood in the dilated arteries, veins, arterioles, venous rootlets and capillaries. All of the circulatory vessels, especially the smaller ones, become enlarged, varicose; and an aggregation of varicosed vessels forms a tumor called a pile or hemorrhoid. Inflammation interferes with nutrition of the anal and rectal tissues, rendering them friable or ...
— Intestinal Ills • Alcinous Burton Jamison

... distension of one of the blood-vessels of some primitive worm, then doubled and became a two-chambered pump in the fish, now develops a partition in the auricle (upper chamber), so that the aerated blood is to some extent separated from the venous blood. This approach toward the warm-blooded type begins in the "mud-fish," and is connected with the development of the lungs. Corresponding changes take place in the arteries, and we shall find that this change in structure is of very ...
— The Story of Evolution • Joseph McCabe

... somewhat slow and difficult, for it was in a manner identified with the hardened mass beneath; but the operation soon proceeded more quickly, and we very soon had the scirrhus exposed, and adhering to the thorax by its base. About two ounces of venous ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt



Words linked to "Venous" :   venous blood, venous blood system, venous sinus, vein, venous pressure, venous thrombosis



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