The human brain consists of three main parts. Only malignant tumors are cancerous. brain [brān] that part of the central nervous system contained within the cranium, comprising the forebrain (prosencephalon), midbrain (mesencephalon), and hindbrain (rhombencephalon); it develops from the embryonic neural tube. It weighs about 3.3 lbs. Learn more. Primary brain tumors cancer initially forms in the brain tissue. Lifestyle has a profound impact on your brain health. Stroke (brain infarction): Blood flow and oxygen are suddenly interrupted to an area of brain tissue, which then dies. The brain is the organ located within the skull that is responsible for cognition, mental processes, and control of the body and its functions. The brain is an organ that coordinates nervous system function in vertebrate and most invertebrate animals. brain meaning: 1. the organ inside the head that controls thought, memory, feelings, and activity: 2. used to…. (1.5 kilograms). The brain is typically located inside the head, within a protective covering such as an exoskeleton or skull.. Brain cancer: Cancer of the central information processing center of the body. It is the location of perception, ideas, thoughts, conscious movement, and unconscious body functions like heart rate and digestion. Traumatic brain injury is most common in children under 4 … The average male has a brain volume of 1,274 cubic centimeters. Brain disorders can affect anyone. The brain is a mass of soft, spongy, pinkish gray nerve tissue that weighs about 1.2 kg in a human being. A blood clot, or bleeding in the brain, are the cause of most strokes. Connected to the spinal The human brain is the largest brain of all vertebrates relative to body size. What you eat and drink, how much you exercise, how well you sleep, the way you socialize, and how you manage stress are all critically important to your brain health. 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