Dorsal trigeminal tract

Dorsal trigeminal tract is a part of the trigeminal nerve system that carries sensory information from the face to the brain. It is a key component of the somatosensory system, which is responsible for processing sensations such as touch, temperature, and pain.

Anatomy

The dorsal trigeminal tract is located in the brainstem, specifically in the pons and medulla oblongata. It is formed by the central processes of the pseudounipolar neurons in the trigeminal ganglion. These neurons receive sensory information from the face via the three branches of the trigeminal nerve: the ophthalmic nerve, the maxillary nerve, and the mandibular nerve.

Function

The primary function of the dorsal trigeminal tract is to transmit sensory information from the face to the brain. This includes tactile sensations, temperature sensations, and pain sensations. The information is first received by the trigeminal ganglion, which then sends it to the brain via the dorsal trigeminal tract.

Clinical significance

Damage to the dorsal trigeminal tract can result in a loss of sensation in the face. This can be caused by a variety of conditions, including stroke, tumor, and multiple sclerosis. In some cases, damage to the tract can also cause trigeminal neuralgia, a condition characterized by severe facial pain.

See also

• Trigeminal nerve
• Trigeminal ganglion
• Somatosensory system

References

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