Spinal Cord Anatomy

The brain is surrounded by the skull. Spinal cord anatomy in the neck internal anatomy of the spinal cord.

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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.

Spinal cord anatomy. An interactive quiz covering spinal cord cross sectional anatomy through multiple choice questions and featuring the iconic gbs illustrations. The spinal cord is surrounded by rings of bone called vertebrae. Together the vertebrae and the membrane make up the spinal column or backbone.

The backbone which protects the spinal cord. Spinal cord anatomy protective structures of the spinal cord the nervous tissue of the central nervous system cns is very delicate and does not respond well to injury or damage. Anatomy and physiology of the spinal cord.

Gross anatomy the spinal cord measures approximately 42 45 cm in length 1 cm in diameter and 35 g in weight. Lumbar enlargement corresponds to the lumbosacral plexus nerves which innervate the lower limb. The spinal meninges help prevent the spinal cord.

It is covered by the three membranes of the cns ie the dura mater arachnoid and the innermost pia mater. Signs and symptoms of spinal cord compression. The cord is an ovoid shaped column of nerve tissue that extends from the medulla at the underside of the brain down through cavities in the spinal column to the second lumbar vertebrae.

The white matter consists of myelinated fibres or axons that form nerve tracts ascending to and descending from the brain. Like the brain it is composed of grey and white matter however opposite to the brain the grey matter is on the internal aspect of the cord and the white matter tracts are external. It passes through the spinal canal or spinal cavity of the vertebral column ie the backbone or spine.

Protective layers of the spinal cord. Both are covered by a protective membrane. The spinal cord is protected by the bones of the spinal cord and enclosed in the protective tissue of the meninges mater.

The white matter is grouped into discrete sectors called funiculi. The gray matter contains cell bodies unmyelinated motor neuron fibres and interneurons connecting the two sides of the cord. When viewed as a cross section from above.

Cervical spinal cord injury. Cervical enlargement corresponds roughly to the brachial plexus nerves. There are two regions where the spinal cord enlarges.

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.

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