Mesencephalon
Mesencephalon
The Mesencephalon (pronounced: meh-sen-SEF-uh-lon), also known as the midbrain, is a part of the brain located in its upper part. The term "mesencephalon" is derived from the Greek words "mesos" meaning middle, and "encephalon" meaning brain.
Structure
The mesencephalon is located between the diencephalon (forebrain) and the metencephalon (hindbrain). It is composed of the tectum and tegmentum, which are responsible for various sensory and motor functions.
Function
The mesencephalon plays a crucial role in motor movement, particularly movements of the eye, and in auditory and visual processing. It is also involved in the regulation of sleep/wake cycles and alertness.
Clinical significance
Damage to the mesencephalon can lead to a variety of neurological disorders, such as Parkinson's disease, progressive supranuclear palsy, and oculomotor nerve palsy.
See also
- Brain
- Diencephalon
- Metencephalon
- Tectum
- Tegmentum
- Parkinson's disease
- Progressive supranuclear palsy
- Oculomotor nerve palsy
References
External links
- Medical encyclopedia article on Mesencephalon
- Wikipedia's article - Mesencephalon
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