tegmentum
Quick Summary
The tegmentum is a part of the midbrain, located in front of the tectum. It is composed of fiber tracts and three distinct regions: the red nucleus, the periaqueductal gray, and the substantia nigra. The red nucleus is involved in coordinating sensorimotor information. The periaqueductal gray plays a role in pain suppression, and the substantia nigra, a pigmented cluster of neurons, synthesizes dopamine and is crucial for mediating movement and motor coordination. The tegmentum also contains parts of the reticular formation, which is involved in arousal and alertness. The term "tegmentum" itself derives from the Latin word for "covering".12
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human nervous systemPons…consists of two parts: the tegmentum, a phylogenetically older part that contains the reticular formation, and the pontine nuclei, a larger part composed of masses of neurons that lie among large bundles of longitudinal and transverse nerve fibers.
Read More…consists of two parts: the tegmentum, a phylogenetically older part that contains the reticular formation, and the pontine nuclei, a larger part composed of masses of neurons that lie among large bundles of longitudinal and transverse nerve fibers.
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midbrainThe tegmentum is located in front of the tectum. It consists of fibre tracts and three regions distinguished by their colour—the red nucleus, the periaqueductal gray, and the substantia nigra. The red nucleus is a large structure located centrally within the tegmentum that is involved in…
Read MoreThe tegmentum is located in front of the tectum. It consists of fibre tracts and three regions distinguished by their colour—the red nucleus, the periaqueductal gray, and the substantia nigra. The red nucleus is a large structure located centrally within the tegmentum that is involved in…
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