Myelinated nerve, TEM

Numéro d’image : 13406473
Myelinated nerve, TEM
Myelinated nerve. Coloured transmission electron micrograph (TEM) of a myelinated nerve fibre. Myelin (blue) is an insulating fatty layer that surrounds nerve fibres, increasing the speed at which nerve impulses travel. It is formed when Schwann cells (pink) wrap around the fibre, depositing layers of myelin between each coil. The outermost layer consists of the Schwann cell's cytoplasm and is known as the nuerolemma or sheath of Schwann. A purple basement membrane surrounds the schwann cells.The nerve fibres are surrounded by endoneurium a delicate connective tissue that contains collagen (yellow). Magnification: x8, 000 when printed at 10 centimetres wide
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 4572 px × 4339 px
Model Release : Non requis
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