Brain | Definition, Parts, Functions, & Facts | Britannica
Dec 10, 2025 · Brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the …
Brain - Wikipedia
Brain ... The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head …
Brain Anatomy and How the Brain Works - Johns Hopkins Medicine
The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body.
Brain - Brain, Spinal Cord, and Nerve Disorders - Merck ...
When the blood-brain barrier is permeable, some substances (such as certain antibiotics) that normally are unable to pass into the brain are able to do so. The activity of the brain results …
Brain Basics: Know Your Brain | National Institute of ...
Feb 25, 2025 · This fact sheet is a basic introduction to the human brain. It can help you understand how the healthy brain works, how to keep your brain healthy, and what happens …
The human brain: Parts, function, diagram, and more
Jul 22, 2025 · Keep reading to learn more about the different parts of the brain, the processes they control, and how they all work together. This article also looks at some ways of …
The Human Brain 101 - Mental Health America
The human brain is often referred to as the body’s “command center” – it’s active at all times and responsible for our thoughts, feelings, and actions.