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124 Veterinary Histology of Domestic Mammals and Birds
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6.9 Relatively thick-walled artery in the subcutis (ox). Haematoxylin and eosin stain (x180).
6.10 Thick-walled artery in the mesentery (dog). The muscle cells in the prominent tunica media are arranged
in a predominantly circular, partly spiral orientation. Azan stain (x250).
Tunica adventitia
External elastic membrane, poorly developed
Tunica media with smooth muscle cells
Tunica intima
Erythrocytes in vessel lumen
6.11 Thin-walled small artery in the subcu-
tis (dog). Goldner’s Masson trichrome stain
(x270).
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