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The inferior colliculus is a structure in the midbrain that plays an important role in auditory processing.

The pons is part of the brainstem and acts as an important communication centre between different parts of the brain.

The medulla oblongata is the lower part of the brainstem that connects the brain to the spinal cord. It regulates vital automatic functions such as breathing, heart rate, blood pressure, and reflexes including swallowing and coughing.

The ventricular system is a network of interconnected cavities within the brain that contains and circulates cerebrospinal fluid (CSF)

A simplified neuron is shown, along with explanations of its various component parts.