Gray commissure
Gray Commissure
The Gray Commissure (pronounced: /ɡreɪ kəˈmɪʃ.ər/) is a thin strip of gray matter that surrounds the central canal of the spinal cord and, along with the anterior white commissure, connects the two halves of the cord.
Etymology
The term "Gray Commissure" is derived from the Latin words 'griseus' meaning 'gray' and 'commissura' meaning 'a joining together'. The term refers to the gray color of the nerve tissue and its function in connecting different parts of the spinal cord.
Function
The Gray Commissure plays a crucial role in the transmission of pain and temperature sensations from one side of the body to the other. It contains crossing sensory fibers that carry these sensations from the peripheral nervous system to the central nervous system.
Related Terms
- Anterior white commissure: A bundle of nerve fibers that cross the midline of the spinal cord and connect its two halves.
- Central canal: A small channel that runs the length of the spinal cord and contains cerebrospinal fluid.
- Sensory fibers: Nerve fibers that transmit sensory information from the body to the brain.
- Peripheral nervous system: The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord.
- Central nervous system: The part of the nervous system that includes the brain and spinal cord.
External links
- Medical encyclopedia article on Gray commissure
- Wikipedia's article - Gray commissure
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