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Home > All Images > 1991 > May > 22 May 1991

Images Dated 22nd May 1991

Choose from 13 pictures in our Images Dated 22nd May 1991 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

LM of a section through the human spinal cord Featured 22 May 1991 Print

LM of a section through the human spinal cord

Light micrograph of a transverse section through the human spinal cord. Grey matter, consisting of unmyelinated nerve cells, forms the butterfly- shaped internal core of the spinal cord (seen here as the golden brown region at right). Outside this is the white matter (the light brown region at left) made up of myelinated nerve fibre bundles, or tracts. These carry information from the brain to the spinal column and vice versa. The spinal cord is wrapped in three layers of membrane, the meninges, not visible here. The cord extends from the brainstem to the level of the second lumbar vertebra. Magnification: x40 at 35mm size