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Dorsal Root (Noun)

Meaning

One of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers.

Classification

Nouns denoting body parts.

Examples

  • The dorsal root ganglia, which contain the cell bodies of the sensory neurons, are located just outside the spinal cord on the dorsal root of the spinal nerve.
  • In a typical spinal nerve, the dorsal root enters the spinal cord in the posterior root, transmitting sensory information.
  • Sensory nerve fibers in the dorsal root convey sensations from the skin, muscles, and other parts of the body back to the spinal cord and ultimately the brain.
  • Dorsal roots can become compressed due to degenerative conditions like a herniated disc or spinal stenosis, causing back and leg pain.
  • Sensory signals carried through the dorsal root may also interact with interneurons and motor neurons in the spinal cord, which play roles in coordinating movements.

Synonyms

  • Dorsal Horn
  • Posterior Root
  • Posterior Horn

Hypernyms

  • Afferent
  • Afferent Nerve
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