At a high level, the brain can be divided into the cerebrum, brainstem and cerebellum. The cerebrum (front of brain) comprises gray matter (the cerebral cortex) and white matter at its …

Brain Your brain is a major organ that regulates everything you do and who you are. This includes your movement, memory, emotions, thoughts, body temperature, breathing, hunger and more. …

Aug 7, 2025 · But across all regions, the brain is made of two primary types of cells: neurons and glial cells. If the brain were a city, neurons would be its citizens—electrically excitable cells that …

Each hemisphere has an inner core composed of white matter, and an outer surface – the cerebral cortex – composed of grey matter. The cortex has an outer layer, the neocortex, and …

Aug 22, 2024 · The human brain is 60% fat. That fat insulates the long tails of brain cells. The brain also contains protein, sugars, water and salts.

The brain and the rest of the nervous system are composed of many different types of cells, but the primary functional unit is a cell called the neuron. All sensations, movements, thoughts, …

May 12, 2025 · It consists of grey matter (the cerebral cortex ) and white matter at the center. The cerebrum is divided into two hemispheres, the left and right, and contains the lobes of the …

Jul 22, 2025 · Various parts of the brain are responsible for movement, breathing, and other crucial processes that keep people alive. The brain is an organ made up of neural tissue and …

In an average adult, the brain weighs roughly three pounds and is composed of about 60% fat. The rest is a mixture of water, proteins, carbohydrates, and minerals. Unlike muscles, the …

Oct 31, 2024 · The brain is primarily composed of nerve cells, with blood vessels to supply them with oxygen and nutrients. Cerebrospinal fluid (CSF), a fluid that provides nourishment and …