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Right controls and receives input from left side of body and vice-versa
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The Corpus Callosum: Provides a pathway for communication between the hemispheres
Left-hemisphere of the brain: Left-hemisphere of the brain is dominant because two zones (Wernike’s area – speech comprehension, Broca’s area – speech production) are located there. It regulates the right hand and speech act. Domination of the left-hemisphere in speech is because of innate tendency of the language.
Cell: the smallest part of a living thing that can exist independently
Neuron: a type of cell that makes up the nervous system and that sends messages to muscles and other parts of the body, and sends messages in the brain about feelings, sights, smells etc.
— The language parts of the brain: The language parts of the brain: are named for two 19th century physicians, Paul Broca and Carl Wernicke.
— Broca’s area is located in the left frontal lobe and is considered responsible for articulated language.
— Wernicke’s area is located in the left temporal lobe and is considered accountable for comprehension of sounds and words.
— Lateralization of the Brain: Human body is asymmetrical: heart, liver, use of limbs, etc.
— Functions of the brain become lateralized
— Each hemisphere specialized for particular ways of working
— Split-brain patients are good examples of lateralization of language functions
Brainy Facts: What do we know about the brain?
— Adult = 3 pounds/ The average weight of an adult brain (reached by age 11 or 12) is 2 7/8 pounds, female and 3 pounds, male.
— 2% of our body weight but consumes 20% of our calories
— 70% water, it consumes 30% of the water we drink
— Unfolded it would measure 2 ft x 2 ft.
— composed of a trillion cells, 100 billion neurons