Science Source Feb 2010

Scanning electron micrograph of an early stage of in vitro fertilization of a hamster ovum. The ovum is covered in microvilli, which coalesce with the...

Band aid absorbant pad viewed under a scanning electron microscope. The featureless, gray layer is the non-absorbant film which prevents to pad from s...

Cotton swab fibers views under a scanning elecron microscope. The individual twisted strands are fibers of cotton that comprise the soft, absorbant ti...

SEM, (x600), of KCl crystals.

Transmission electron micrograph of a longitudinal section of the junction of midpiece and principal piece in the sperm. The insert at right is of an...

Transmission electron micrograph (freeze etched) of the surface of a crystal of Barium Titanate (BaTiO3) after being etched in HCI at 0 degrees Centig...

Microsopic image of asbestos fibers. Mag. x7,250. Asbestos is the name given to a number of naturally occurring, fibrous silicate minerals mined for t...

Asbestos fibers. Mag., 47,500x

Transmission electron micrographs of the mitochondria-lipid relationships in papillary muscle of the cat heart. Although energy for muscle contraction...

Transmission electron micrograph of a mitochondrion from cricothyroid muscle of a bat. This mitochondrion from a rapidly contracting skeletal muscle h...

Transmission electron micrograph of a Leydig cell from interstitial tissue of opossum testes. The interconnected meshwork of 80 to 120 nanometer tubul...

Transmission electron micrograph of a pancreatic acinar cell from the bat (Myotis lucifugus). At several points on the circumference of the nucleus, t...

Transmission electron micrograph of a polymorphonuclear leukocyte from a guinea pig. Three pseudopods are clearly visible protruding from the cell.

Transmission electron micrograph of glycogen in the liver of the Salamander. In amphibian liver, glycogen particles are so small and uniform in size t...

A scanning electron micrograph of normal red blood cells from sheep. Compare with image 9f9787, which shows the shape of blood cells in sheep with par...

A scanning electron micrograph of blood cells from sheep with partial or complete kidney failure. The blood cells distort, forming characteristic spik...

Transmission electron micrograph of a plasma cell from guinea pig bone marrow. The various organelles are clearly visible.

Transmission electron micrograph of a cross section of the nucleus and capillary lumen.

Transmission electron micrograph of papillary muscle from the heart. This transverse section passes through the region of filaments interdigitating at...

Transmission electron micrograph of isolated chromosomes treated to permit the DNA to uncoil, forming a broad halo around the core proteins.

Transmission electron micrograph of filaments in two adjacent glial cell processes. The filaments take up the bulk of the cytoplasm in the processes,...

Transmission electron micrograph of microvilli on an absorptive cell of the intestinal epithelium. The fine filaments of the glycocalyx extend into th...

Transmission electron micrograph of multivesicular bodies in human epididymal epithelium. This image facilitates easy comparison of dense lysosomes wi...

Transmission electron micrograph of a freeze-fractured spermatid from guinea pig testis. The densely-packed nuclear pores are clearly visible.

Scanning electron micrograph of microvilli covering the surface of a cell. This image depicts mammalian fertilization, with the flagellum of the sperm...

Transmission electron micrograph of the flight muscle in a fly. Flight muscle demonstrates ordered arrangement of thick and thin filaments. Thin filam...

Transmission electron micrograph of a hepatic cell from a fasted hamster after an injection of cortisone. In mammalian liver, glycogen appears in the...

Transmission electron micrograph of a freeze-fractured nucleus. Dense clusters of nuclear pores are visible, along with vast areas where there are non...

Transmission electron micrograph of a freeze fractured nucleus. The nuclear envelope and large numbers of nuclear pores are also visible.

Transmission electron micrograph of the thick surface membranes and the adjacent rough endoplasmic reticulum of two pancreatic acinar cells from a bat...

Pinocytosis is a form of endocytosis in which small particles are brought into the cell suspended within small vesicles which subsequently fuse with l...

Scanning electron micrograph of a single sperm penetrating an egg at the point of fertilization. As the sperm head sinks into the ooplasm, microvilli...

Rotation reinforced transmission electron micrograph of a centriole from an H3 polyoma tumor. This image has been intensified by summation of fraction...

Transmission electron micrograph of a centriole fixed in glutaraldehyde and tannic acid. This cross section shows the protofilaments of the triplets i...

Scanning electron micrograph of white blood cells. The lymphocytes (upper right) are distinguished by relatively few microvilli compared to the macrop...

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 the smooth endoplasmic reticulum. The smooth endoplasmic reticulum synthesizes lipids and steroids, metabolizes ca...

Transmission electron micrograph of lysosomes from epididymal epithelium. These organelles vary widely morphologically, but all function as an intrace...

Transmission electron micrograph of an early stage of flagellum formation in a spermatid. This distinctive centriole serves as the basal body and may...

Transmission electron micrograph of centriole regions irradiated with a laser microbeam without acridine orange sensitization. Centriolar satellites,...

Cross sectional transmission electron micrograph of microtubules.

Peripheral nerve in cross-section, showing groups of unmyelinated axons enclosed in deeply invaginated recesses in the surface of the Schwann cells. A...

Human lymphocytic tissue culture showing several cells in early stages of cell death (apoptosis). The cytoplasm of the cells are dense and granular- i...

Transmission electron micrograph of an erythroblast (bone marrow cell) showing the nuclear pore. The thin ridge or flange encircling the membranes por...

Scanning electron micrograph of the columnar epithelium of the human oviduct, at mid cycle. There are two types of cell present: ciliated and noncilia...

Scanning electron micrograph of the columnar epithelium of the human oviduct, at mid cycle. There are two types of cell present: ciliated and noncilia...

Transmission electron micrograph of the surface cell membranes of two adjoining cells. The 15 nm intercellular cleft is occupied by material consistin...

Transmission electron micrograph of a freeze fractured cell membrane. The P-face (top) has roughly five times the number of surface globules compared...

Transmission electron micrograph of catalase, an enzyme found in nearly all living organisms. It serves to catalyze the decomposition of hydrogen pero...

Transmission electron micrograph of catalase, an enzyme found in nearly all living organism. It serves to catalyze the decomposition of hydrogen perox...