Answer
The cerebellum is physically connected to the brain stem by three pairs of fiber tracts , namely, the superior cerebellar peduncles, the middle cerebellar peduncles, and the inferior cerebellar peduncles.
Work Step by Step
Three pairs of fiber tracts , the superior cerebellar peduncles , the middle cerebellar peduncles, and the inferior cerebellar peduncles physically connect the cerebellum and the brain stem --midbrain, pons and medulla oblongata.
1 The superior cerebral peduncles connect the cerebellum with the midbrain. They carry information ipsilaterally from the neurons in the deep cerebral nuclei to the cerebral motor cortex by way of the thalamic relay.
2. The middle cerebral peduncles constitute a one- way communication from pons to the cerebellum. They transmit impulses that inform the cerebellum of voluntary motor activities initiated by the motor cortex.
3. The inferior cerebral peduncles connect the cerebellum and the medulla. oblongata.They trans- mit sensory information from muscle proprioceptors to the brain stem vestibular nuclei to serve the the purpose of integration in the control of balance and equilibrium.
