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Vascular system   /vˈæskjələr sˈɪstəm/   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 system" Quotes from Famous Books



... on each side of the prominent bone are of great effect, I suppose, by their stimulus; which excites into action more of the sensorial powers of irritation and sensation, and thus gives greater activity to the vascular system in their vicinity. The methods recommended in distortion of the spine are also to be ...
— Zoonomia, Vol. II - Or, the Laws of Organic Life • Erasmus Darwin

... some of the affected ones wilt and die. In the exposed outer wood of a branch cut above or below the canker there are reddish-brown streaks several inches long, indicating that the fungus has grown in the vascular system. ...
— Northern Nut Growers Association Incorporated 39th Annual Report - at Norris, Tenn. September 13-15 1948 • Various

... movements of which he is in large part unconscious, which he does nothing to initiate, and which he is largely powerless to prevent. Some of them are wholly, and others almost, out of the reach and power of his will. Such are the movements of the heart and vascular system, the action of the lungs in breathing, the movements of the digestive tract, the work of the various glands in their process of secretion. The entire organism is a mass of living matter, and just because it is living no part of ...
— The Mind and Its Education • George Herbert Betts

... as the osseous skeleton displays the law of symmetry; but while the osseous system offers no exception to this law, the vascular system offers one which, in a surgical point of view, is of considerable importance—namely, that behind the right sterno-clavicular articulation, C, Plate 9, is found the artery, A, named innominate, this being the common trunk of the right common carotid and subclavian vessels; ...
— Surgical Anatomy • Joseph Maclise

... of stimulating animal food, on which they are from infancy fed, induces at an early age a highly plethoric state of the vascular system. The weaker, over-distended vessels of the nose quickly yield to the increased impetus of the blood, and an active hemorrhage relieves the subject. As the same causes continue to be applied in excess at frequent intervals, and ...
— Three Voyages for the Discovery of a Northwest Passage from the • Sir William Edward Parry



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