Science Source Feb 2010

Transmission electron micrograph of a mitochondrion from an organ culture of rat adrenal. This section displays an unusually large mitochondrion with...

Transmission electron micrograph of a mitochondrion from the plant Vica fabia. DNA filaments are visible in the matrix, and there are a number of smal...

Transmission electron micrograph of a cell from the ductulus efferens of the ground squirrel. The majority of the mitochondrial profiles in this image...

Transmission electron micrograph of a longitudinal section of a mitochondrion and surrounding cytoplasm from pancreas of a bat. This image displays ch...

Transmission electron micrograph of a melanocyte from the iris of Macaca mulatta. The vesicles indicated by arrows near the juxtanuclear Golgi complex...

Transmission electron micrograph of a pigment cell from the iris of Macaca mulatta. The melanocyte in the image is in the connective tissue at the roo...

Transmission electron micrograph of a melanocyte from the skin of a black person. This melanocyte is at the dermoepidermal junction near portions of t...

Transmission electron micrograph of secretory granules associated with an extensive Golgi complex in a cell from Brunner's gland of mouse. In very act...

Transmission electron micrograph of a Golgi apparatus in a non-pigmented cell of the ciliary epithelium in Macaca mulatta. There are an abundance of c...

Transmission electron micrograph of the supranuclear region of a cell from rabbit epididymis. The large, dense granules are lysosomes. The small circu...

Transmission electron micrograph of the Golgi apparatus and associated organelles of a cell from rat liver. Liver cells have multiple small Golgi comp...

Transmission electron micrograph of a transitional zone of endoplasmic reticulum and Golgi region from a cell of Brunner's gland. Transport (intermedi...

Transmission electron micrograph of the Golgi apparatus in nurse cells from the testes of the insect Oniscus. In this image, the fenestrated outermost...

Transmission electron micrograph of the thiamine pyrophosphatase reaction of the Golgi apparatus in rat epididymis. In this staining method, osmium bu...

Transmission electron micrograph of the epididymis of a mouse. Collidine-buffered osmium fixation with 40 hours postosmication at 37 degrees. Osmium b...

Transmission electron micrograph of the tibialis anterior of the mouse. Two T-tubules are seen in each sarcomere at the junctions of the A and I bands...

Transmission electron micrograph of the tibialis anterior of the mouse. This selectively stained image shows dark T-tubules, terminal cisternae, and s...

Transmission electron micrograph of intrinsic muscle from the swim bladder of the toadfish. In contrast to the single layer of sarcotubules between my...

Low power micrograph of muscle in the swim bladder of the toadfish. This view shows the highly ordered arrangement of the sarcoplasmic reticulum in th...

Transmission electron micrograph of a section of frog sartorius. This image shows the differentiations of the system in relation to a single sarcomere...

Transmission electron micrograph of the smooth endoplasmic reticulum in an adrenal cortical cell. Compared with those of the rough endoplasmic reticul...

Transmission electron micrograph of glycogen in an area of a hamster hepatic cell rich in smooth endoplasmic reticulum. Dark clusters of glycogen alph...

Transmission electron micrograph of the liver of a hamster treated for four days with phenobarbital. One of the major functions of the liver is to met...

Transmission electron micrograph of a rat liver. An important function of the liver is processing and then distributing dietary lipids throughout the...

Transmission electron micrograph of a plasma cell from guinea pig bone marrow. Some plasma cells do not concentrate their products in discrete secreto...

Transmission electron micrograph of a section of a Nissl body showing free polysomes. A Nissl body is a large angular block of basophilic material, se...

Transmission electron micrograph of the rough endoplasmic reticulum in pancreatic acinar cells of the human pancreas.

Illustration of the three-dimensional configuration of the rough endoplasmic reticulum occurring in fenestrated cisternae or anastomosing tubules. Iso...

Transmission electron micrograph of a stack of annulate lamellae associated with the nuclear envelope of a human oocyte. Annulate lamellae may occur s...

Transmission electron micrograph of annulate lamellae in a Sertoli cell of human seminiferous epithelium. This is a typical aggregation of annulate la...

Transmission electron micrograph of annulate lamellae in oocytes of sea urchin (Arbacia sp.). Annulate lamellae consist of membrane-bound cisternae in...

Transmission electron micrograph of a portion of an epidermal cell from human skin. In these cells, the fibrous lamina is well-defined. It stains less...

Transmission electron micrograph of an intestinal epithelial cell of Amphiuma tridactylum. The fibrous lamina, outlined, is visible as a continuous de...

Transmission electron micrograph of a freeze fractured nucleus from a guinea pig spermatocyte. This image shows large aggregations of closely packed p...

Transmission electron micrograph of a nucleolus from a neuron in the spinal cord of a female cat. The sex chromatin is closely applied to a dense fibr...

Transmission electron micrograph of the nucleolus of spermatogonium from testis of the Chinese hamster. The nucleolonema is organized around several h...

Transmission electron micrograph of the epididymal spermatozoon of a mouse. The sample is an extreme example of chromatin condensation, especially in...

Transmission electron micrograph of an orthochromatic erythroblast (normoblast) from guinea pig bone marrow. The erythroblast is at an advanced stage...

Transmission electron micrograph of a polychromatophilic erythroblast from guinea pig bone marrow. This stage of cell specialization is marked by a co...

Transmission electron micrograph of a plasma cell from guinea pig bone marrow. This cell has abundant heterochromatin in a characteristic pattern of l...

Transmission electron micrograph of a pancreatic acinar cell fixed with osmium and stained with lead hydroxide.

A striking difference in nuclear size is illustrated in this micrograph of neighboring epithelial cells in tick, (Rhipicephalus appendiculatus), saliv...

Schematic depiction of the principal structural components of the nucleus. The nucleus contains a nucleolus, surrounded by heterochromatin and euchrom...

Low power micrograph of the papillary muscle in a cat heart. The asterisks on the image point to the gap junctions.

Transmission electron micrograph of the region of the cell center from a hamster's suprarenal cortex. Dark lysosomes are clustered near the Golgi comp...

Transmission electron micrograph of gap junctions from a freeze fractured granulosa cell of rat ovarian follicle.

Transmission electron micrograph of a freeze-fractured gap junction. The bottom portion of the image shows the unspecialized area of P-face. The middl...

Transmission electron micrograph of a freeze-fracture prepared gap junction from a granulosa cell at the rat ovary. Shown here is the P-face, covered...

Connexons, each composed of six connexins, form gap junctions to connect cell membranes and allow selective transportation of particles between cells....

Transmission electron micrograph of desmosomes in glial cells in the nerve cord of the annelid worm (Aphrodite aculeata). Desmosomes in invertebrates...