Lateral grey column

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Lateral Grey Column

The Lateral Grey Column is a region of the spinal cord that plays a crucial role in transmitting sensory and motor information. It is located on the sides of the spinal cord and is composed of gray matter, which contains the cell bodies of neurons.

Anatomy

The Lateral Grey Column is divided into several regions, including the intermediolateral nucleus, the lateral motor nucleus, and the substantia gelatinosa. These regions are responsible for different functions within the spinal cord.

The intermediolateral nucleus is involved in the autonomic nervous system and controls functions such as sweating, blood pressure regulation, and bladder control. The lateral motor nucleus contains motor neurons that innervate muscles involved in voluntary movements. The substantia gelatinosa is responsible for processing pain and temperature sensations.

Function

The Lateral Grey Column plays a crucial role in transmitting sensory and motor information between the brain and the rest of the body. Sensory information from the body is transmitted to the brain through the dorsal root ganglia, which then synapse with neurons in the Lateral Grey Column. Motor commands from the brain are transmitted to the muscles through the Lateral Grey Column.

Clinical Significance

Damage to the Lateral Grey Column can result in various neurological disorders. For example, damage to the intermediolateral nucleus can lead to autonomic dysreflexia, a condition characterized by abnormal responses of the autonomic nervous system. Damage to the lateral motor nucleus can result in muscle weakness or paralysis, depending on the extent of the damage. Damage to the substantia gelatinosa can lead to abnormal pain sensations or loss of temperature sensation.

See Also

• Spinal Cord
• Grey Matter
• Dorsal Root Ganglia

References

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  Lateral grey column
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  Sympathetic circuit from the lateral horn
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  Connections of the sympathetic nervous system