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Circulatory system (systema cardiovasculare et Iymphovasculare) 123
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6.6 Arteriole in greater omentum (dog). Goldner’s Masson trichrome stain (x1200).
6.7 Small artery, venule and capillary in the skin (dog). Haematoxylin and eosin stain (x250).
The tunica intima constitutes the inner portion of the
− membrana elastica interna (internal elastic
membrane); vessel wall (Figure 6.8). It consists of a single-layered
· tunica media and endothelium and a continuous basal lamina, a subendothe-
· tunica adventitia (externa). lial layer composed of connective tissue and an internal
elastic membrane.
6.8 Structure of an artery (schematic).
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