Pinterest • The world’s catalog of ideas

Explore Sporozoite Stage, Magnification X2400, and more!

from Science Source

SJ3630: Nerve fiber node, TEM

Nerve fiber node. Colored TEM cross-section through a nerve fiber at a node of Ranvier. The axon (blue) is surrounded by a fatty insulating sheath of myelin (green), which increases the speed of the nerve signal. ©Thomas Deerinck, NCMIR/Science Source #neuron #micrograph #scienceimages #stockphotos #ScienceSource

Goblet and secretory cells. Coloured transmission electron micrograph (TEM) of a section through a goblet cell (pink & blue) and secretory cells of the duodenum, part of the small intestine. The goblet cell secretes mucus which neutralises stomach acid. The mucigen granules (circular objects, at upper centre) combine with water to form the mucus. On either side of the goblet cell are the secretory cells whose secretions help in the digestive process. The microvilli (green hair- like…

E. coli bacteria, SEM Caption: E. coli bacteria. Coloured scanning electron micrograph (SEM) of Entero Pathogenic Escherichia Coli (EPEC) bacteria (red) attached to the surface of a human epithelial cell (green). The bacteria have induced the cytoskeleton of the host cell to form 'pedestals' on which the bacteria are sitting. EPEC is a pathogenic variety of a common gut bacteria.

A cross section of a Zea stem (corn) showing vascular bundles. The staining gives each type of cell a different colour.