Cerebral peduncles
Cerebral Peduncles
The Cerebral Peduncles (pronunciation: səˈrēbrəl pəˈdəNGkəl) are a pair of structures found in the brain, specifically in the midbrain region. They are part of the brainstem and play a crucial role in connecting the forebrain and the hindbrain.
Etymology
The term "Cerebral Peduncles" is derived from the Latin words cerebrum meaning "brain" and pedunculus meaning "little foot". This is due to the appearance of these structures, which resemble small stalks protruding from the base of the brain.
Anatomy
Each cerebral peduncle is divided into two parts: the Crus Cerebri and the Tegmentum. The Crus Cerebri, also known as the cerebral crus, is the anterior part of the cerebral peduncle which contains the motor tracts. The Tegmentum, on the other hand, is the posterior part of the cerebral peduncle and contains the sensory tracts.
Function
The primary function of the cerebral peduncles is to serve as a conduit for motor and sensory information between the Cerebrum and the Pons. They also play a role in refining motor movements, maintaining posture and balance, and regulating awareness and consciousness.
Related Terms
- Midbrain: The part of the brain where the cerebral peduncles are located.
- Brainstem: The posterior part of the brain, continuous with the spinal cord, which the cerebral peduncles are a part of.
- Crus Cerebri: The anterior part of the cerebral peduncle.
- Tegmentum: The posterior part of the cerebral peduncle.
External links
- Medical encyclopedia article on Cerebral peduncles
- Wikipedia's article - Cerebral peduncles
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