Chp_3_The_brain

Chp_3_The_brain - Your Brain Health The single greatest...

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Unformatted text preview: Your Brain Health The single greatest system ever designed in the history of the universe is your brain. It is responsible for your every thought, emotion, and behavior. We do not know much about our brains Its time to change that. The BRAIN Weighs 2-4 pounds Is comprised of 60% fat and is the fattiest system in your body Consumes 25% of blood from every heart beat New Ideas about your BRAIN The human brain (like the animal brain) can generate new brain cells (neurogenesis) The human brain is now thought to have neural plasticity or be a system that is highly dynamic, constantly recognizing, and malleable It is shaped by environmental input. Our brains need exposure to environments that are enriched and complex. Those that are not do not help the health of your brain. Examining the Brain Brain controls every thought, action, and feeling Studying for a long periods of time requires more energy and causes more aches and pain that jogging.. The Hemisphere Brain is divided into 2 halves. Separated by a Fissure- lengthy depression marking off one are of the brain from the other Hemisphere- each half of the brain Left Hemisphere controls Right side of body Right Hemisphere controls Left side of body Corpus Callosum Corpus Callosum- large bundle of nerve fibers that transfer info from one half of brain to the other The Lobes 4 major sections called Lobes Frontal Parietal Occipital Temporal Frontal Lobe Front-most area that contains the motor strip and frontal association area The frontal lobe has a major role in the planning and execution of movements. Parietal Area behind the frontal lobe and above the temporal lobe. Contains the Sensory strip The parietal lobe contains the Sensory Strip through which sensations, such as touch and pressure, are felt. In addition, it has a key role in spatial orientation and information processing. Occipital The occipital lobe is located posterior to (behind) the temporal lobe and is the visual center of the brain. Very back of brain that is devoted to visual info from the eyes Temporal The temporal lobe is located inferior to (below) the frontal and parietal lobes. It is primarily involved with auditory processing and memory. Responsible for hearing and some speech functions Wernicke and Broca Brocas area- area of the left of the frontal lobe that directs the muscle movements in speech Wernickes area of the left temporal lobe involved language comprehension Frontal Association Area Forward portion of the brain that engages in elaborate association or mental connections Plays an important part in integrating personality and in forming complex thoughts Interprets what is going on and tells us what to do, how to feel Phineas Gage 1840s railroad worker 4 ft iron rod enter his brain Friendly and normal to someone who swore, undressed whenever, went to the bathroom in public places Social control Starter Question...
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Chp_3_The_brain - Your Brain Health The single greatest...

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