The midpiece of spermatzoa in nearly all vertebrates is enclosed in a sheath of mitochondria, which provide a ready source of ATP necessary for sperm motility. Here, a longitudinal section through sp...

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...

Single tilt image of a 250 um thick section of a Drosophila S2 cell infected with flock house virus (FHV-1) imaged with intermediate voltage electron microscopy, taken at zero degree tilt. The dark sp...

Lipid droplet interaction with mitochondria and endoplasmic reticulum in inflammatory neutrophils. The sequence of images in different magnifications shows a transversal sections of the neutrophils. B...

Lipid droplet interaction with mitochondria and endoplasmic reticulum in inflammatory neutrophils. The sequence of images in different magnifications shows a transversal sections of the neutrophils. B...

Lipid droplet interaction with mitochondria and endoplasmic reticulum in inflammatory neutrophils. The sequence of images in different magnifications shows a transversal sections of the neutrophils. B...

Lipid droplet interaction with mitochondria and endoplasmic reticulum in inflammatory neutrophils. The sequence of images in different magnifications shows a transversal sections of the neutrophils. B...

Figures 234 and 235 from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. During spermiogenesis in insects, mitochondria fuse into a large spherical mass called the nebenkern. ...

Figure 236 from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Fusion of mitochondria during insect spermiogenesis results in the formation of a structure called the nebenkern...

Lipid droplet contacts with nucleus and kinetoplast in a Leishmania amastigote inside golden hamster spleen cell. The image shows a transversal section of the cell. Below plasma membrane is possible t...