13.4 MB (1.6 MB compressed)
2557 x 1834 pixels
21.6 x 15.5 cm ⏐ 8.5 x 6.1 in (300dpi)
DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
Pinocytosis, or 'cell drinking', as seen on the free surface of epithelial cells. In the endothelium of blood vessels, thin folds can project from the margin of the cell into the lumen in order to ingest liquid into the cell (note four projections at top of image). Transmission electron micrograph.
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