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Vascular   Listen
adjective
Vascular  adj.  
1.
(Biol.)
(a)
Consisting of, or containing, vessels as an essential part of a structure; full of vessels; specifically (Bot.), pertaining to, or containing, special ducts, or tubes, for the circulation of sap.
(b)
Operating by means of, or made up of an arrangement of, vessels; as, the vascular system in animals, including the arteries, veins, capillaries, lacteals, etc.
(c)
Of or pertaining to the vessels of animal and vegetable bodies; as, the vascular functions.
2.
(Bot.) Of or pertaining to the higher division of plants, that is, the phaenogamous plants, all of which are vascular, in distinction from the cryptogams, which to a large extent are cellular only.
Vascular plants (Bot.), plants composed in part of vascular tissue, as all flowering plants and the higher cryptogamous plants, or those of the class Pteridophyta. Cf. Cellular plants, under Cellular.
Vascular system (Bot.), the body of associated ducts and woody fiber; the fibrovascular part of plants.
Vascular tissue (Bot.), vegetable tissue composed partly of ducts, or sap tubes.
Water vascular system (Zool.), a system of vessels in annelids, nemerteans, and many other invertebrates, containing a circulating fluid analogous to blood, but not of the same composition. In annelids the fluid which they contain is usually red, but in some it is green, in others yellow, or whitish.






Collaborative International Dictionary of English 0.48








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"Vascular" Quotes from Famous Books



... the food material absorbed through the walls of the alimentary canal to the living and active parts of the body. This is one of the functions of the series of structures— heart and blood-vessels, called the circulation, circulatory system, or vascular system. It is not the only function. The blood also carries the oxygen from the lungs to the various parts where work is done and kataboly occurs, and it carries away the katastases to the points where they are excreted— the ...
— Text Book of Biology, Part 1: Vertebrata • H. G. Wells

... says that tea "exhilarates without sensibly intoxicating. It excites the brain to increased activity and produces wakefulness; hence its usefulness to hard students, to those who have vigils to keep, and to persons who labor much with the head. It soothes, on the contrary, and stills the vascular system, (arteries, veins, capillaries, etc.), and hence its use in inflammatory diseases, and as a cure for headaches. Green tea, when strong, acts very powerfully on some constitutions, producing nervous ...
— Tea Leaves • Francis Leggett & Co.

... of the abdomen, the state of spasm of the uterus in women and of the alimentary canal in both sexes, the state of contraction, of orgasm, of turgescence in the fleshy envelopes, in the muscular layers which protect and inclose the abdomen, the thorax, the principal vascular trunks, and the bony surfaces, must essentially contribute to weaken, to deaden, to nullify, the effect of the blows. Is it not by means of an analogous state of orgasm, which an over-excited will produces, that boxers and athletes find themselves in a condition ...
— The Atlantic Monthly, Volume 13, No. 77, March, 1864 • Various

... and edible, others are not thicker than a finger and of a woody composition, and the structure of this woody variety is very interesting. The sugar-beet consists, as is generally known, of concentric layers of sugar-tissue and of vascular [69] strands; the larger the first and the smaller the latter, the greater is, as a rule, the average amount of sugar of the race. Through the kindness of the late Mr. Rimpau, a well known German breeder of sugar-beet varieties, I obtained specimens from seed of a native wild locality ...
— Species and Varieties, Their Origin by Mutation • Hugo DeVries

... studied the infantile cerebropathies with their resulting imbecilities, syphilis followed by general paresis, typhoid fever and its toxic delirium, chronic alcoholism with its characteristic psychoses, cerebral thrombosis with its aphasias, agnosias, and apraxias, thalmic syndromes due to vascular lesions with their unilateral pathological feeling-tone, frontal-lobe tumors with joke-making, uncus tumors with hallucinations of taste and smell, lethargic encephalitis with its disturbance of the general consciousness and its psychoneurotic sequelae (lesions in the globus pallidus and their ...
— A Psychiatric Milestone - Bloomingdale Hospital Centenary, 1821-1921 • Various

... The vascular connection of vegetable buds with the leaves in whose bosoms they are formed is confirmed by the following experiment, (Oct. 20, 1781.) On the extremity of a young bud of the Mimosa (sensitive plant) a small drop of acid of vitriol was put by means of a pen, and, after a few seconds, ...
— The Botanic Garden - A Poem in Two Parts. Part 1: The Economy of Vegetation • Erasmus Darwin

... and bright red in colour; air-cells distended or ruptured; many small haemorrhages on surface of lungs and other organs, as well as in their substance (Tardieu's spots), due to rupture of venous capillaries from increased vascular pressure. ...
— Aids to Forensic Medicine and Toxicology • W. G. Aitchison Robertson

... pressure. It must be closely associated with the nutritional processes like secretion or inflammation; beyond this we know little about it. The association of increased blood pressure with glaucoma seems to be generally an indirect one through vascular lesions and disturbances ...
— Glaucoma - A Symposium Presented at a Meeting of the Chicago - Ophthalmological Society, November 17, 1913 • Various

... physiological and the social organisms. But this is not the place for a controversy involving so many technicalities, and I content myself with one remark, namely, that the whole course of modern physiological discovery tends to show, with more and more clearness, that the vascular system, or apparatus for distributing commodities in the animal organism, is eminently under the control of the cerebro-spinal nervous centres—a fact which, unless I am again mistaken, is contrary ...
— Critiques and Addresses • Thomas Henry Huxley

... opinion of increased action, which has been supposed to take place in fevers, because a frequent pulse was observed, must be false, because the frequency arises from a directly opposite state, and indicates a diminished action of the vascular system. ...
— Popular Lectures on Zoonomia - Or The Laws of Animal Life, in Health and Disease • Thomas Garnett

... appeared to me as one cause of spurious eruptions, I have already remarked in the former treatise, namely, the transition that the cow makes in the spring from a poor to a nutritious diet, and from the udder's becoming at this time more vascular than usual for the supply of milk. But there is another source of inflammation and pustules which I believe is not uncommon in all the dairy counties in the west of England. A cow intended to be exposed ...
— The Harvard Classics Volume 38 - Scientific Papers (Physiology, Medicine, Surgery, Geology) • Various

... if adrenalin caused these changes merely as a metabolic phenomenon and not as a "work" phenomenon, then the injection of adrenalin into the carotid artery of a crossed circulation dog would cause no change in its circulation and its respiration, since the brain thus injected is in exclusive vascular connection with the body of another dog. In our experiment the blood-pressures of both dogs were recorded on a drum when adrenalin was injected into the common carotid. The adrenalin caused a rise in blood-pressure, an increase in the force of cardiac ...
— The Origin and Nature of Emotions • George W. Crile

... characeae, mosses and liverworts, and vascular cryptogams, where in special structures produced by cell-divisions there arise single primordial cells, which divide into two portions, of which the upper portion dissolves or becomes mucilaginous, while the lower contracts and rearranges itself to ...
— Scientific American Supplement, Vol. XXI., No. 531, March 6, 1886 • Various

... principles in a nutshell, when he laid down the following rule: "There is a trianal series of graduations in the peculiar potencies of colors, the center and climax of electrical action, which cools the nerves, being in violet; the climax of electrical action, which is soothing to the vascular system, being in blue; the climax of luminosity being in yellow; and the climax of thermism or heat being in red. This is not an imaginary division of qualities, but a real one, the flamelike red color having a principle of warmth in itself; the blue and violet, a principle of cold ...
— The Human Aura - Astral Colors and Thought Forms • Swami Panchadasi

... sticks. You are so alive! You glow like a ruddy flower. You look so animated I almost expect to see you move! I postpone the eating of you, you are so beautiful! How compact; how exquisitely tinted! Stained by the sun and varnished against the rains. An independent vegetable existence, alive and vascular as my own flesh; capable of being wounded, bleeding, wasting away, or ...
— Winter Sunshine • John Burroughs



Words linked to "Vascular" :   vascular system, water vascular system, vascular hemophilia, vascular structure, vascularize, vascular tissue, vascular ray, vascularity, vascular bundle, vascular plant, avascular



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