Leishmania mexicana amastigotes in their parasitophorous vacuole in a mouse macrophage. Murine macrophages (cell line J774) were infected in vitro with Leishmania mexicana stationary phase promastigot...

Longitudinal section through a Leishmania promastigote cell. Leishmania mexicana promastigote forms (WHO strain MNYC/BZ/62/M379) were grown in M199 culture medium. Cells were fixed with glutaraldehyde...

Scanning electron micrograph showing tentacles on the head of a Hydra viridis. Epithelial cells located at the base of the tentacle are in a flat, contracted state. Cell distal to the head of the H. v...

High Voltage (1MeV) TEM image of a 'thick' section of polytene chromosome from salivary gland of 3rd instar larva of Drosophila melanogaster showing the band-interband organization. This image was cap...

Transmission electron micrograph of guinea pig pancreas mitochondria and lipid droplets. The use of osmium tetroxide as a fixative for electron microscopy was first described by Dr. Palade at the Roc...

Transmission electron micrograph of smooth microsomes obtained by fraction of guinea pig pancreas. Cell fractionation confirmed that newly synthesized acinar cell secretory proteins moved from the rou...

Single computed slice from a tomographic reconstruction through the Calyx of Held of an adult cat. The mitochondrion in the presynaptic terminal exhibits a structural specialization termed the mitocho...

Single computed slice through a tomographic volume of mitochondria at the Node of Ranvier in rat peripheral nerve root. This image has been downsampled from the raw data image which can be accessed u...

A single computed slice through tomographic volume of selectively stained Purkinje cell spiny dendrite from rat cerebellar cortex. This image has been downsampled from the raw data image which can b...

A single slice from the slice-by-slice reconstructed volume of a Caulobacter Crescentus specimen. This particular slice is taken from Z slice # 142. This image has been downsampled from the raw data ...