MHS 240 Spinal Cord

MICROSCOPE SLIDE

SLIDE NAME

MHS 240 Spinal Cord

TISSUE

Spinal Cord

STAIN

Hematoxylin & Eosin

IMAGE SIZE

17,820 x 13,950 pixels
926 MB

FILE SIZE

71 MB

MAGNIFICATION

40x

PIXEL SIZE

0.3171 µm

SOURCE

Robert L. Sorenson

CONTACT

Questions or comments should be sent to
tcbrelje@gmail.com

This web site is owned and operated by:

T. Clark Brelje, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455

Robert L. Sorenson, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455

Version 4.2

© 2005-2019.
T. Clark Brelje and Robert L. Sorenson.
All rights reserved.

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MHS 240 Spinal Cord

Spinal Cord

Peripheral nerves contain sensory neurons and motor neurons that connect with the spinal cord. In cross-section, the spinal cord is divided into the butterfly-shaped grey matter and surrounding white matter.

Gray Matter - butterfly-shaped region that contains nerve cell bodies and supporting glial cells.

Dorsal Horns (left, right) - upper parts of the wings that receive sensory input from peripheral neurons.
Ventral Horns (left, right) - lower parts of the wings that contain the cell bodies of motor neurons that give rise to the motor portion of peripheral nerves.

Nissl Substance - basophilic material in nerve cell bodies and dendrites. The result of a large amount of RNA in free polyribosomes and rough endoplasmic reticulum (RER).
Axon - a single, large process that emerges from the nerve cell bodies at the axon hillock. Axons do not contain Nissl substance.
Dendrites - multiple processes extending from the nerve cell bodies that contain Nissl substance.

White Matter - contains ascending and descending axons (bundled into tracts) and supporting glial cells.
Central Canal - small, round structure in the center of the spinal cord that contains cerebral spinal fluid. Lined with a simple cuboidal-to-columnar epithelium of ependymal cells.