Red Nucleus

A large nucleus located in the midbrain tegmentum, primarily involved in motor coordination, particularly of the upper limbs, and part of the rubrospinal tract.

Key Functions:

• Contributes to motor coordination, especially arm and shoulder movements.
• Origin of the rubrospinal tract, involved in regulating muscle tone and posture.
• Receives input from the cerebellum and cerebral cortex.

Interacting Systems & Components:

• Midbrain (located in)
• Cerebellum (receives input from, specifically interposed nucleus)
• Cerebral Cortex (receives input from)
• Spinal Cord (projects to via rubrospinal tract)
• Motor Control (involved in)