15 THE VEINS. smallest arteries) traces of an epithelial lining, and of circular transverse fibres, are to be seen. The Veins are composed of three coats, internal, middle, and external, as the arteries are; and these coats are, with the necessary modifications, analogous Fig. 39. Fig. 38. … An artery, .01,,,1 and 5, avein, .015", Finest vessels ou the arterial skle. 1. Smallest artery. 2. from the mesentery of a child (mag- Transition vessel. 3. Coarser capillaries. 4. Finer capillaries. nified 350 times and treated with a. Structureless membrane still with some nuclei, representative…
Human anatomy
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