Sectional Anatomy Of Spinal Cord

Describe the cross sectional anatomy of the spinal cord and the location and function of the major spinal cord tracts. The two grooves are named as follows.

Anatomy Of The Spine And Back

The spinal cord itself extends from the foramen magnum all the way to the first or second lumbar vertebra being enclosed inside the vertebral column.

Sectional anatomy of spinal cord. The gray matte of the spinal cord is located at its center with the white matter surrounding it. Anatomy of the spinal cord. These two grooves run the length of the cord and partially divide it into right and left halves.

From each of these 6 to 8 nerve rootlets branch out in a definite and regular pattern. The spinal cord is divided into four major parts. The ventral anterior median fissure and the more shallow dorsal posterior median sulcus.

The cervical thoracic lumbar and sacral nerves. The central gray matter contains the neural cell bodies. The spinal cord is part of the central nervous system cns which extends caudally and is protected by the bony structures of the vertebral column.

The spinal cord is elliptical in cross section being compressed dorsolaterally. A transverse section of the adult spinal cord shows white matter in the periphery gray matter inside and a tiny central canal filled with csf at its center. The spinal cord like the brain consists of two kinds of nervous tissue called gray and white matter.

It is covered by the three membranes of the cns ie the dura mater arachnoid and the innermost pia mater. Gray matter has a relatively dull color because it contains little myelin. Cross sectional anatomy of the spinal cord.

Anatomy and physiology of the spinal cord. The spinal cord medulla and the brain together make up the central nervous system cns. Cross sectional anatomy of spinal cord.

The posterior median sulcus is the groove in the dorsal side and the anterior median fissure is the groove in the ventral side. 34 internal structure of the spinal cord. An interactive quiz covering spinal cord cross sectional anatomy through multiple choice questions and featuring the iconic gbs illustrations.

At every segment there is a pair of right and left spinal nerves. It contains the somas dendrites and proximal parts of the axons of neurons. A cross sectional view of the spinal cord demonstrates a central butterfly shaped area of gray matter and peripheral white matter fig.

Surrounding the canal is a single layer of cells the ependymal layer. Two prominent grooves or sulci run along its length. Collectively the entire spinal cord is divided into 31 segments.

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