What is the largest part of the brain called?

The largest part of the brain is known as the cerebrum. This region plays a critical role in a variety of higher cognitive functions, including reasoning, problem-solving, and planning. The cerebrum is responsible for most voluntary functions and is divided into two hemispheres, further subdivided into lobes that govern specific functions such as movement, sensation, and language.

This distinction in brain structure is significant because while the cerebellum, brainstem, and thalamus contribute to various essential functions, they do not encompass the overall volume and extensive capabilities of the cerebrum. The cerebellum, for instance, primarily coordinates movement and balance. The brainstem controls vital life functions such as heart rate and breathing. The thalamus acts as a relay station for sensory information. In contrast, the cerebrum encompasses the majority of the brain's mass and is fundamental in integrating sensory input and enabling complex thought processes. Understanding these distinctions highlights the importance of the cerebrum in both the structure and function of the human brain.