The cerebellum is involved in coordinating movement and balance. It also plays a role in cognitive functions. Thus, sometimes referred to as the “little brain.”

Your cerebellum is located below the cerebrum. It is divided into three parts called lobes. The lobes are separated from each other by fissures.

The cerebellum has two major components:
1. Cerebellar cortex – a thin layer of heavily folded tissue. It contains most nerve cells in the cerebellum.
2. Cerebellar nuclei – the nerve cells found in the cerebellar nuclei are involved in sending information from the cerebellum.

Source:
Seladi-Schulman, J., PhD. (2020, February 11). What Is the Cerebellum and What Does It Do? Healthline. https://www.healthline.com/health/cerebellum#location

Neuron

Neurons are the fundamental units of your brain. They are responsible for receiving sensory input and sending motor commands to our muscles.

There are three main parts of a neuron:
1. Dendrites – this is where neurons receive input from other cells.
2. Axon – the output structure of the neuron. It sends an electrical message called action potential to communicate with another neuron.
3. Cell body or soma – this is where the nucleus lies where it houses the neuron’s DNA. It is also the site where proteins are made for transportation throughout the axon and dendrites.

Source:
What is a neuron? (2019, August 13). Queensland Brain Institute – University of Queensland. https://qbi.uq.edu.au/brain/brain-anatomy/what-neuron#:%7E:text=Neurons%20(also%20called%20neurones%20or,at%20every%20step%20in%20between.