what is the biggest part of the human brain and function?

The cerebrum is the largest part of the human brain, making up about 80% of its total volume. It is found at the top and front of the skull, immediately above the brainstem and in front of the cerebellum. The cerebrum is divided into two hemispheres, left and right, which are connected by a thick bundle of nerve fibers called the corpus callosum. Its outer layer, the cerebral cortex, is highly folded into ridges and grooves (gyri and sulci), greatly increasing its surface area and allowing for more complex processing.

Main Functions of the Cerebrum

The cerebrum is responsible for nearly all conscious mental processes and voluntary actions, including:

• Thinking and reasoning: Making decisions, planning, solving problems, and controlling attention.
• Movement: Initiating and coordinating voluntary muscle movements.
• Sensory perception: Interpreting information from senses such as touch, sight, hearing, taste, and smell.
• Speech and language: Controlling speech production and comprehension.
• Memory: Storing and retrieving memories, both short-term and long-term.
• Emotion and personality: Regulating emotional responses and aspects of personality.
• Learning and intelligence: Supporting learning, abstract thinking, and intellectual activities.

Different regions of the cerebrum, known as lobes, have specialized roles:

• Frontal lobe: Decision-making, planning, personality, and voluntary movement.
• Parietal lobe: Sensory interpretation and spatial awareness.
• Temporal lobe: Memory, hearing, and language.
• Occipital lobe: Vision and visual processing.