Spinal Cord Cross Section Anatomy

The gray matter is made up of neuroglia cells and neuron cell bodies.

Spinal cord cross section anatomy. In cross section c s the segments appear to be divided into two zones. Spinal cord cross section the gray matter is the butterfly shaped central part of the spinal cord and is comprised of neuronal cell bodies. It contains pathways that connect the brain with the rest of the body.

The spinal cord has a central core of gray matter that looks somewhat butterfly or h shaped in cross sections. The two grooves are named as follows. There are 31 spinal cord nerve segments in a human spinal cord.

12 thoracic segments forming 12 pairs of thoracic nerves 5 lumbar segments forming 5 pairs of lumbar nerves 5 sacral. Internal anatomy of the spinal cord 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. Key areas of a cross section of the spinal cord include.

The gray matter is the dark butterfly shaped region of the spinal cord made up of nerve cell bodies. The outer zone contains many myelinated axons that run up and down the spinal cord. 8 cervical segments forming 8 pairs of cervical nerves c1 spinal nerves exit the spinal column between the foramen.

It shows anterior lateral and posterior horns. 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. Cross sectional anatomy of the spinal cord the spinal cord appears to be somewhat flat with two grooves that mark its surface.

The white matter is made up of neuron axons mostly but not all myelinated. The ventral anterior median fissure and the more shallow dorsal posterior median sulcus.