Cross Section Of A Spinal Cord

The outer zone contains many myelinated axons that run up and down the spinal cord.

Cross section of a spinal cord. There are 31 spinal cord nerve segments in a human spinal cord. In cross section c s the segments appear to be divided into two zones. The white matter surrounds the gray matter in the spinal cord and contains cells coated in myelin which.

These horns form columns of gray matter that run the length of. Find spinal cord cross section stock images in hd and millions of other royalty free stock photos illustrations and vectors in the shutterstock collection. When viewed as a cross section from above the spinal cord consists of a butterfly shaped or thick h shaped region of gray matter that sits in the middle of the white matter.

The white matter is grouped into discrete sectors called funiculi. 12 thoracic segments forming 12 pairs of thoracic nerves 5 lumbar segments forming 5 pairs of lumbar nerves 5 sacral. The white matter consists of myelinated fibres or axons that form nerve tracts ascending to and descending from the brain.

In a cross section of the spine the gray matter looks similar to the letter h. The white matter is made up of neuron axons mostly but not all myelinated. A cross section of the spinal cord reveals white matter arranged around a butterfly shaped area of gray matter.

Key areas of a cross section of the spinal cord include. Thousands of new high quality pictures added every day. The spinal cord has a central core of gray matter that looks somewhat butterfly or h shaped in cross sections.

The gray matter is the dark butterfly shaped region of the spinal cord made up of nerve cell bodies. The core consists mainly of two posterior dorsal horns which extend toward the posterolateral surfaces of the cord and two thicker anterior ventral horns which extend toward the anterolateral surfaces. The gray matter is made up of neuroglia cells and neuron cell bodies.