Human brain

How much does a human brain weigh? The human brain weighs about 3 lbs. (1.4 kilograms) and makes up about 2% of a human's body weight. On average, male brains are about 10% larger than female brains, according to Northwestern Medicine in Illinois. The average male has a brain volume of nearly 78 cubic inches (1,274 cubic centimeters), while the average female brain has a volume of 69 cubic inches (1,131 cubic cm). The cerebrum, which is the main part of the brain located in the front area of the skull, makes up 85% of the brain's weight. How many brain cells does a human have? The human brain contains about 86 billion nerve cells (neurons) — called " Proceedings of the National Academy of Sciences. The brain also has about the same number of non-neuronal cells, such as the oligodendrocytes that insulate neuronal axons with a myelin sheath. This gives axons (thin strands through which electrical impulses are transmitted between neurons) a white appearance, and so these axons are called the brain's "white matter." Other cool facts about the brain • The brain can't multitask, according to the Dent Neurologic Institute. Instead, it switches between tasks, which increases errors and makes things take longer. • The human brain triples in size during the first year of life and reaches full maturity at about age 25. • Humans use all of the brain all of the time, not just 10% of it. • The brain is 60% fat, according to Northwestern Medicine. • The human brain can generate 23 watts ...

Overview What is the brain? Your brain is an essential organ. All of your emotions, sensations, aspirations and everything that makes you uniquely individual come from your brain. This complex organ has many functions. It receives, processes and interprets information. Your brain also stores memories and controls your movements. Your brain is one component of your central Function What is the brain’s function? Your brain receives information from your five senses: sight, smell, sound, touch and taste. Your brain also receives inputs including touch, vibration, pain and temperature from the rest of your body as well as autonomic (involuntary) inputs from your organs. It interprets this information so you can understand and associate meaning with what goes on around you. Your brain enables: • Thoughts and decisions. • Memories and emotions. • Movements (motor function), balance and coordination. • Perception of various sensations including pain. • Automatic behavior such as breathing, heart rate, sleep and temperature control. • Regulation of organ function. • Speech and language functions. • Fight or flight response ( Anatomy What are the main parts of the brain? Your brain’s structure is complex. It has three main sections: • Cerebrum : Your cerebrum interprets sights, sounds and touches. It also regulates emotions, reasoning and learning. Your cerebrum makes up about 80% of your brain. • Cerebellum : Your cerebellum maintains your balance, posture, coordination and fine m...