BE_Myelinated nerves. A section through myelinated nerve fibers and Schwann cells. Myelin (green) is an insulating fatty layer that surrounds the nerve fibre (axon, black), increasing the speed at which nerve impulses travel.
Place 2011 Photomicrography Competition Gabriel Luna UC Santa Barbara Neuroscience Research Institute Santa Barbara, California, USA Subject Matter: Retinal flatmount of mouse nerve fiber layer Technique: Laser Confocal Scanning
O mundo como você nunca viu: as fotografias macro vencedoras da Nikon
A cross section of a bundle of nerve fibers. Axons (orange) are wrapped in myelin (purple); an extension of the membrane of glial cells. Myelin has high lipid content, and acts to insulate the axons, causing them to transmit nerve impulses much faster.
Two interphase cells with immunofluorescence labeling of actin filaments (purple), microtubules (yellow), and nuclei (green). This image won first place in the Nikon 2003 Small World photo competition. The Cell: An Image Library - Image
Rods and cones in retina -- Color enhanced scanning electron micrograph (SEM) of rods and cones in the human retina. The retina is the back part of the eye that contains rods and cones, photoreceptor cells