Sections Of Spinal Cord

There are four sections of the spinal cord.

Sections of spinal cord. The white matter surrounds the gray matter in the spinal cord and contains cells coated in myelin which. 8 cervical segments forming 8 pairs of cervical nerves c1 spinal nerves exit the spinal column between the foramen. The fibres then continue down through the canal to the sacrum and coccyx where they branch off to legs.

The section is divided into eight individual sections that each control specific functions of the neck and arms. 12 thoracic segments forming 12 pairs of thoracic nerves 5 lumbar segments forming 5 pairs of lumbar nerves 5 sacral. The very bottom of the spine is the sacral region.

The normal curvature of the cervical vertebrae is inwards lordosis. 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. At the back are two dorsal horns and away from the back are two ventral horns.

31 pairs of spinal nerves branch off the spinal cord. This portion of the spinal cord innervates the neck and arms. The spinal cord has a central core of gray matter that looks somewhat butterfly or h shaped in cross sections.

These vertebrae function to allow flexion extension bending and turning of the head. Spinal cord cross section. Lumbar spinal nerves l1 to.

Anatomy of the backbone cervical spine. The gray matter is the dark butterfly shaped region of the spinal cord made up of nerve cell bodies. Spinal cord segments cervical spinal nerves c1 to c8 control signals to the back of the head the neck and shoulders the arms and hands.