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The Vascular System of the Cerebral Cortex

Springer Book Archives
1980. Buch. vi, 62 S.: 17 s/w-Abbildungen, Bibliographien. Softcover
Springer ISBN 978-3-540-09652-8
Format (B x L): 17 x 24,4 cm
Gewicht: 151 g
In englischer Sprache
Das Werk ist Teil der Reihe:
A vascular system consists of a supplying arterial and a draining venous part which are connected by a terminal vascular network. The arterial segment can be characterized according to the structural features of the vessel wall. However, it is sometimes diffi­ cult to distinguish the capillary from the postcapillary vessels on the basis of structural features alone. On the other hand, physiologic qualities such as permeability can hard­ ly be associated with an equivalent histologic pattern of the vessel wall (lllig 1961; Rhodin 1967, 1968; Hauck 1971; Westergaard 1974). A defmition of a vascular seg­ ment based on biologic significance should combine morphological and functional qualities of the vessel walls. During the ontogeny of the mammalian organism a variety of vascular patterns (e. g., distribution of arteries and veins, arrangement of the capillaries) has been formed typical of each organ (Wolff et al. 1975; Baez 1977). The capillaries connect the feed­ ing arterioles and the collecting venules in two different ways according to the branch­ ing pattern of the terminal vessels (Hauck 1975, Wolff et al., 1975). The arterioles and venules are directly connected by capillary segments. Consequently a terminal vessel called arteriovenous (a-v) capillary results, or a closely meshed capillary network is de­ veloped which connects arterioles and venules by a variable number of small capillary branches arranged parallel to the preexisting a-v capillary.

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