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Cards In This Set
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Whats the bigest part of the brain?
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The cerebral cotex
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How many large sulci divide the cerebral cortex into it's various lobes? What are the lobes called?
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There are 4 large sulci that divide the cerebral cortex into various lobes. These lobes are called the frontal lobe, the parietal lobe, the occipital lobe and the temporal lobe
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A large groove separates the brain into the left and right halves. What is this groove called?
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This groove is called the interhemispheric fissure
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The right and left halves of the brain talk to each other through a tract of white-matter fibers. what are these white-matter fibers called?
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These white-matter fibers are called the corpus callosum
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The right and left halves of the brain communicate through another tract of fibers other than the corpus callosum. These fibers are near the rear of the brain. What are they called?
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These fibers are called the anterior commissure
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The cortical area above the corpus callosum is divided by a groove. What is this groove called?
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This groove is called the cingulate gyrus, also referred to as the limbic system or limbic lobe
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The cerebral cortex is folded forming folds and grooves. What are these forms and grooves called?
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The folds are called gyri and the grooves are called sulci
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In the case of the brain, the connections that happen are made by what?
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The connections are made by neurons that link the sensory inputs and motor outputs with centers in the various lobes of the cerebral cortex. There are also linkages between these cortical centers and other parts of the brain.
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Several areas of the cerebral cortex have specialized functions. The parietal lobe is one of those areas. What special functions does the parietal lobe control?
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The parietal lobe receives and processes all somatosensory input from the body. The rear of the parietal lobe (next to the temporal lobe) has a section called Wernicke's area, which is important for understanding the sensory (auditory and visual) information associated with language.
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If damage to the parietal lobe should occur, what would happen?
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If damage to the parietal lobe should occur the area of the brain produces what is called sensory aphasia, in which patients cannot understand language but can still produce sounds.
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Fibers from the spinal cord are distributed to various parts of the parietal lobe. What are the fibers distributed from?
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The fibers are distributed by the thalamus
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Several areas of the cerebral cortex have specialized functions. The frontal lobe is one of them. What special functions does the frontal lobe control?
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The frontal lobe is involved in motor skills (inluding speech) and cognitive functions. The motor center of the brain receives connections from the somatosensory portion of the parietal lobe and processes and initiates motor functions.
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What is the actual name for the motor center of the brain? Where is it located?
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The actual name for the motor center of the brain is the pre-central gyrus), and it is located in the rear of the frontal lobe just in front of the parietal lobe.
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The connections of the fibers from the spinal cord form a map of the body's surface on the parietal lobe. What is this map called?
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This map is called a homunculus
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An area on the left side of the frontal lobe processes language by controlling the muscles that make sounds (mouth, lips, larynx). What is this area called?
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This area is called Broca's area
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