This electron micrograph shows a cross section through the midpiece of opossum sperm. Filamentous cytoplasm underlies a scalloped membrane with regular variations in thickness, which gives it a corrug...

A row of large IMPs bordering parts of the plates are visible. Two parentheses-shaped empty trichocyst docking sites are also present and one ring surrounding pits where the rosette IMPs have been rem...

A row of large IMPs bordering parts of the plates are visible. Two parentheses-shaped empty trichocyst docking sites are also present and one ring surrounding pits where the rosette IMPs have been rem...

COS 7 cell expressing Organelle LightsTM PM-GFP (Invitrogen)consisting of the myristoylation/palmitoylation sequence from Lck tyrosine kinase. Images were collected with a 63X 1.4 NA Plan-Apochromat ...

COS 7 cell expressing Organelle LightsTM PM-GFP (Invitrogen)consisting of the myristoylation/palmitoylation sequence from Lck tyrosine kinase. Images were collected with a 63X 1.4 NA Plan-Apochromat ...

Sarcolemma of skeletal muscle prepared by a quick-freeze deep-etch method also shows the basement membrane (lamina externa, labeled here as the basal lamina) associated with the muscle fiber. This me...

Scanning electron micrograph of the surface of a peritoneal mast cell from mouse shows undulating folds, and few microvilli. The membrane folds could be misinterpreted for microvilli if analyzed in t...

Electron micrograph showing fingerprint like ridges called microplicae on the surface of fish skin epidermis from the neon tetra. These ridges offer mechanical reinforcement against trauma and help ho...

Transmission electron micrograph of desmosomes (macula adherens)in the junctional complex between cells in frog skin. The upper desmosome is cut obliquely and appears much wider than the lower (vertic...

Schwann cells in peripheral nerves secrete a layer similar to the basal lamina called the lamina externa, boundary layer, or basement membrane. In this micrograph, the lamina externa surrounds the Sc...