FIG. 1.
Example of an arteriolar capillary network showing all readily distinguishable portions of capillaries. An arteriolar capillary is defined as that portion of the total capillary pathway which is in the same projected microscopic field as the arteriole which feeds it. The dashed lines represent capillaries which were barely visible and thus were not sampled for technical reasons. Note the relatively straight capillaries that are typical of both arteriolar and venular capillaries in the hamster retractor muscle.