The cornu of the spinal cord refers to the two posterior (dorsal) projections, also known as horns, that extend outward from the main body of the spinal cord. These horns are present in both the gray matter and white matter of the spinal cord, with each horn serving distinct functions.
The dorsal horn, situated posteriorly, is responsible for receiving sensory information from various parts of the body and transmitting it to the brain. It is involved in relaying sensory signals related to pain, temperature, touch, and other sensory modalities.
On the other hand, the ventral horn, located anteriorly, is primarily responsible for controlling motor functions. It contains cell bodies of motor neurons, which transmit signals from the brain to the muscles, enabling voluntary movements. The ventral horn plays a crucial role in coordinating muscle contractions and movements of the body.
The cornu of the spinal cord is an integral part of the central nervous system and plays a crucial role in transmitting and integrating sensory and motor information. Any damage or injury to these horns can lead to various sensory and motor dysfunctions, such as altered sensation, muscle weakness, or paralysis, depending on the level and severity of the damage. Understanding the anatomy and functions of the cornu of the spinal cord is essential in diagnosing and treating neurological disorders and spinal cord injuries.
