DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Neuron cell body with large nucleus and nucleolus (central nervous system), coloured transmission electron micrograph (TEM). Note the surrounding neuropil with myelinated axons (dark outlines). Neurons are (also known as nerve cells) are cells of the nervous system that are specialized to carry messages through an electrochemical process. They have special cells called astrocytes (also known as astroglia) that are a type of neuroglial cell that provides support functions in the central nervous tissue and spinal cord. They perform a variety of tasks, from axon guidance and synaptic support, to the control of the blood brain barrier and blood flow. Magnification: x560 when shortest axis printed at 25 millimetres.
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