Tegmentum
Tegmentum
Tegmentum (pronunciation: teɡˈmenˌtəm) is a region of the brainstem. It forms the floor of the midbrain and is involved in many basic functions such as regulation of heart rate and respiration.
Etymology
The term 'Tegmentum' is derived from Latin, where 'tegere' means 'to cover'. In the context of the brain, it refers to the part that 'covers' or 'protects' the ventral aspects of the midbrain.
Anatomy
The Tegmentum is located between the ventricular system and the basal ganglia. It is divided into three parts: the rostral, caudal, and ventral tegmentum. Each of these parts has different structures and functions.
Function
The Tegmentum plays a crucial role in many basic bodily functions. It helps regulate heart rate and respiration through the reticular formation, a set of interconnected nuclei that are involved in multiple tasks such as sleep and arousal. The Tegmentum also plays a role in motor functions through the red nucleus, which communicates with the cerebellum and spinal cord to coordinate body movements.
Related Terms
- Midbrain: The part of the brain where the Tegmentum is located.
- Reticular formation: A set of interconnected nuclei in the Tegmentum that are involved in multiple tasks such as sleep and arousal.
- Red nucleus: A structure in the Tegmentum that communicates with the cerebellum and spinal cord to coordinate body movements.
- Ventral tegmental area: A group of neurons located close to the midline on the floor of the midbrain, playing a key role in the reward circuit of the brain.
External links
- Medical encyclopedia article on Tegmentum
- Wikipedia's article - Tegmentum
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