ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
Light micrograph (silver preparation) of a section through the spinal cord, showing the variation in appearance between the outer white matter (consisting of a mass of nerve fibres) and an inner zone of grey matter (yellow), where nerve cell bodies are apparent. The grey matter apppears in the shape of a butterfly if a whole cross- section of the cord is viewed. In the core of the grey matter is a canal (not visible) which conducts cerebro-spinal fluid and is continuous with the ventricles (chambers) of the brain. Magnification: x20 at 35mm size, x40 at 6x7cm size.
Model release not required. Property release not required.