Arteriole, venule, and capillary (100x
objective lens)
High magnification image of a section through an arteriole
(upper right), with two smooth muscle nuclei cut in longitudinal section,
wrapping around its outer surface. Just below and to the left is its corresponding
venule, with two endothelial
cell nuclei cut in cross section. A capillary
is seen below and to the left of the venule. It has a single endothelial
cell nucleus. The surrounding connective tissue is highly
refringent due to the high contrast of the image caused by closing the condenser
diaphragm.