Spinal Cord Section Anatomy

Spinal cord segments edit. The spinal cord is divided into four major parts.

Ch 12 Gross Anatomy Of The Spinal Cord

The gray matter which is primarily composed of nerve cell bodies has two regions on each side or butterfly wing within the cervical spines region of the spinal cord.

Spinal cord section anatomy. It shows anterior lateral and posterior horns. 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. Gross anatomy 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.

Cross sectional anatomy of spinal cord. The spinal cord is elliptical in cross section being compressed dorsolaterally. Collectively the entire spinal cord is divided into 31 segments.

Internal anatomy of the spinal cord. 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.

Spinal cord section showing the white and the gray matter in four spinal cord levels. The posterior median sulcus is the groove in the dorsal side and the anterior median fissure is the groove in the ventral side. White matter surrounds the gray matter and is made of axons.

From each of these 6 to 8 nerve rootlets branch out in a definite and regular pattern. Two prominent grooves or sulci run along its length. A component of the central nervous system it sends and receives information between the brain and the rest of the body.

An interactive quiz covering spinal cord cross sectional anatomy through multiple choice questions and featuring the iconic gbs illustrations. Gray matter has a relatively dull color because it contains little myelin. The gray matter mainly contains the cell bodies of neurons and glia and is divided into four main columns.

Spinal cord anatomy the spinal cord is a bundle of nerve fibers that extend from the brain stem down the spinal column to the lower back. Anatomy of the spinal cord. At every segment there is a pair of right and left spinal nerves.

Dorsal horn intermediate column lateral horn and ventral horn column. 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 the somas dendrites and proximal parts of the axons of neurons.

The cervical thoracic lumbar and sacral nerves.

Topographic And Functional Anatomy Of The Spinal Cord Gross