Monocyte/macrophage (black arrows) and lymphocyte (gray arrow) karyorhexis

Scanning electron micrograph of a hamster oocyte cumulus complex. Cumulus cells (purple) and matrix (gray) are shown. Small blood clots (red) also often appear in oocyte cumulus complexes. The red blo...

Confocal micrograph of astrocytes and oligodendrocytes from neural stem cells Astrocytes (green) and oligodendrocytes (red) derived from rat neural stem cells in culture. Both these cells are types of...

Transmission electron micrograph of a discontinuous endothelium in a capillary from a guinea pig pancreas. There is a red blood cell in the capillary lumen and a pericyte under the endothelium. Imag...

Light micrograph of human ovum (egg) and sperm. The ovum is much larger than the sperm and is surrounded by protective cumulus cells around the outside surface (yellow). The membrane surrounding the o...

Figure 393 from Chapter 15 (Cytoplasmic Inclusions) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Longitudinal section of frog neuromuscular junction, prepared by rapid freezing with liquid helium fo...

Confocal micrograph of neural stem cells transplanted into mouse brain Mouse neural stem cells, labelled with green fluorescent protein, have been transplanted into the brain of a newborn mouse and ar...

Transmission electron micrograph of a rat kidney filtration barrier. This tangential section illustrates the fenestrated endothelium and basement membrane. The series of images in this group have p...

Light micrograph of a longitudinal section of the epididymis. The lining of the duct consists of pseudostratified epithelial cells, which have prominent microvilli on their free surface extending in...

Adult Caenorhabditis elegans (C. elegans) nematode imaged by DIC (differential interference contrast) microscopy. The angle of light allows for the visualization of many of the tissues in this living ...