Sectional Anatomy Of The Spinal Cord

Cross sectional anatomy of the spinal cord. It passes through the spinal canal or spinal cavity of the vertebral column ie the backbone or spine.

Spinal Cord Ascending And Descending Tracts Kenhub

The spinal cord is part of the central nervous system cns.

Sectional anatomy of the 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. Spinal cord segments cross sectional anatomy. Two prominent grooves or sulci run along its length.

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. The spinal cord is elliptical in cross section being compressed dorsolaterally. The spinal cord finishes growing at the age of 4 while the vertebral column finishes growing at age 14 18.

The gray matte of the spinal cord is located at its center with the white matter surrounding it. These two grooves run the length of the cord and partially divide it into right and left halves. Contains 2 types of nervous tissue.

It is situated inside the vertebral canal of the vertebral column. Almost dividing the spinal cord in half are two longitudinal grooves. The narrow indentation that partitions the back surface is known as the dorsal median sulcus or posterior median sulcus and the broader groove that partitions the front surface is called the ventral median fissure or anterior median fissure.

An interactive quiz covering spinal cord cross sectional anatomy through multiple choice questions and featuring the iconic gbs illustrations. The two grooves are named as follows. Gray matter has a relatively dull color because it contains little myelin.

The ventral anterior median fissure and the more shallow dorsal posterior median sulcus. The peripheral white matter contains the axon tracts. Grey matter consists of neuron cell bodies with little myelin and white matter consists of myelinated axons.

The central gray matter contains the neural cell bodies. It is covered by the three membranes of the cns ie the dura mater arachnoid and the innermost pia mater. The spinal cord like the brain consists of two kinds of nervous tissue called gray and white matter.

It contains the somas dendrites and proximal parts of the axons of neurons. Describe the cross sectional anatomy of the spinal cord. Tracts are named with their point of origin first.

Spinal cord anatomy basically spinal cord is a long and narrow bundle of nervous tissues and support cells which extends from the base of our brain to the upper lumbar region. Cross sectional anatomy of spinal cord. Central area of grey matter shaped like a butterfly and surrounded by white matter in three columns.

A cross sectional view of the spinal cord demonstrates a central butterfly shaped area of gray matter and peripheral white matter fig. During development theres a disproportion between spinal cord growth and vertebral column growth.

The Spinal Cord Spinal Nerves And Spinal Reflexes Ppt