130
Fig. 8.8 A human heart visualized by scanning electron microscopy. The lumen of a small thin-
walled vessel (probably a venule) lined with vascular endothelium (VaEn) is observed. The endo-
thelial cell nuclei protrude into the lumen. Some cardiac muscle cells of the myocardium (Myo)
are also observed (Orig. Magn. 1650×)
Fig. 8.9 A human heart visualized by scanning electron microscopy. Surface endocardial endothe-
lium is observed beneath a subendothelial layer of loose connective tissue and cardiac muscle cells
in the myocardium (Myo). (Orig. Magn. 599×)
I. Varga et al.