In cardiac muscle, mitochondria are distributed uniformly in a near-continuous field of myofilaments, ensuring that ATP is readily available. This transverse section is of right ventricular papillary...

Figure 218 from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. The typical structural organization of mitochondria is revealed in this longitudinal section of a mitochondrion ...

Tubules within the cristae of mitochondria can sometimes take on unusual configurations. Here, in the upper panel, a mitochondrion from an astrocyte in hamster brain appears to have prismatic tubules...

Here a mitochondrion is sliced approximately through its midplane, so both its outer membrane and the infoldings of its inner membrane are clearly seen. The organization of the inner membrane is parti...

Transmission electron micrograph of an unstained, unfixed cytochrome c oxidase crystal prepared from beef heart mitochondria imaged in the frozen hydrated state. A crystalline organization is seen wit...

Transmission electron micrograph of an unstained, unfixed cytochrome c oxidase crystal prepared from beef heart mitochondria imaged in the frozen hydrated state. The crystalline organization is seen w...

Transmission electron micrograph of an unstained, unfixed cytochrome c oxidase crystal prepared from beef heart mitochondria imaged in the frozen hydrated state. A crystalline organization is seen wit...

Avian erythrocytes differ from most vertebrates in retaining the nucleus at maturity. During erythrocyte development, transcription is progressively shut down and nuclei become compact and heterochrom...

Transmission electron micrograph of an unstained, unfixed cytochrome c oxidase crystal prepared from beef heart mitochondria imaged in the frozen hydrated state. A crystalline organization is seen wit...

Transmission electron micrograph of an unstained, unfixed cytochrome c oxidase crystal prepared from beef heart mitochondria imaged in the frozen hydrated state. A crystalline organization is seen wit...