Ch_15 - Chapter 15 Language and the Brain Language and the...

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1 Chapter 15 Language and the Brain Language and the brain ± Neurolinguistics: field that studies the relationship between language and the brain ± Neurologists ± Psychologists ± Speech-language pathologists Neuroanatomy ± Human nervous system: ± Brain ± Spinal cord ± Brain ± Cerebrum, which is the main mass of the brain, ± Brainstem, group of important structures at the base of the brain, that connect the brain to the spinal cord ± Cerebellum, attached to the back of the brainstem and is important for coordination of movements
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2 Brain ± Brain’s most basic functions ± Causing movement ± Processing sensation ± The brain sends motor commands to the muscles of the body by way of the brainstem and spinal cord, and the spinal cord transmits sensory info like touch and pain from various parts of the body. Hemispheres ± Cerebrum ± Right hemisphere ± Left hemisphere ± This is what is meant when people refer to right brain versus left brain. Primary motor cortex (M1) Posterior parietal cortex Premotor cortex (PMA) Supplementary motor cortex (SMA)
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3 CELL BODY AXON Myelin sheath Schwann cel Node of Ranvier Synaptic terminals Dendrites Nucleus Synapses Neurons ± Neuron: ± Cell body: receives signals from other neurons, process info ± Axon: sends signals to other neurons
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4 Cerebral cortex ± Outer layer of cerebral hemisphere ± Made up of gray matter = cell bodies of neurons ± Under cortex = white matter= axons Frontal lobe Temporal lobe Parietal lobe Occipital lobe Cerebel um
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5 Lobes Each cerebral hemisphere consists of 4 lobes: ± Frontal lobe: starts in the front, just behind the forehead and goes almost half way back to the back of the head. It sends the most of the motor commands to the muscles of your body that cause movement. The frontal lobe is important for personality, planning and decision making. Lobes
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Ch_15 - Chapter 15 Language and the Brain Language and the...

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