Spinal Column Cross Section

Vertebra and spinal cord cross section view toggle anatomy system.

Spinal column cross section. There are 31 spinal cord nerve segments in a human spinal cord. Spinal cord cross section. Key areas of a cross section of the spinal cord include.

In this video i cover the spinal cord in cross section. The gray matter is the dark butterfly shaped region of the spinal cord made up of nerve cell bodies. Looking at a cross section of the spinal cord you would see gray matter shaped like a butterfly surrounded by white matter.

The spine also known as the vertebral column or spinal column is a column of 26 bones in an adult body 24 separate vertebrae interspaced with cartilage and then additionally the sacrum and coccyx. 12 thoracic segments forming 12 pairs of thoracic nerves 5 lumbar segments forming 5 pairs of lumbar nerves 5 sacral. 8 cervical segments forming 8 pairs of cervical nerves c1 spinal nerves exit the spinal column between the foramen.

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 spinal cord has a central core of gray matter that looks somewhat butterfly or h shaped in cross sections. The gray matter is the core and ends up to be four projections that are known as horns.