FIGURE 9.

(a) X-ray micrographs of a mouse aorta sample fixed in resin; the overall sample dimension, including the resin, is ∼5 × 7 × 10 mm. Scale bar is 400 μm. (b) One of the tomography reconstructed slices. The detailed structure of the vessel wall is clearly seen even if the sample is larger than the imaged area. The aorta wall is layered by the waving elastic laminae, the innermost of which, internal elastic lamina (marked by black arrows), is isolated from the lumen (L) by a monolayer of endothelial cells (white arrows). Scale bar is 15 μm.