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24 Cards in this Set
- Front
- Back
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what are the "islands of gray matter that lie deep in the white matter of the cerebrum?
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basal nuclei
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name the three types of tracts that make up the internal white matter of the cerebrum
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projection, association, commissural.
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what are the tracts in the cerebrum most numerous in number?
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association
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in the cerebrum what tracts extend from hemisphere to hemisphere?
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commisural
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These are extensions of corticospinal, and spinothalamac tracts in the cerebrum?
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projection
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In the cerebrum what is the white curved structure composed of commissural tracts?
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corpus callosum
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The Lentiform nucleus, Caudate nucleus, and Amygdaloid nucleus are included as parts of what structure?
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Basal nuclei
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decreased secreation of dopamine form the substantia nigra leads to what disease?
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Parkinsons
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The _______ gyrus is the spot of primary auditory and auditory association?
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transverse
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What gyrus functions mainly as a general somatic sensory area?
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Postcentral gyrus
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Name the method used to measure brain waves?
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electroencephalograms (EEG)
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What are the four measurable brain waves?
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Alpha - Relaxed
Beta - Busy Delta - Deep sleep Theta - Drowsy |
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where can you find the primary visual center?
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Occipital lobe
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The precentral gyrus is separated from the post central gyrus how?
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the central sulcus
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what area of the brain is the sensory functions cotrolled by?
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post central gyrus
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give the job of the Reticular activating system?
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receives messages from spinal cord and relays tehm to the thalamus, then to all parts of cerebral cortex.
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a state of one's awareness and environment and other humans is a definition of what?
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consciousness
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what is the physiological effect if you depress the RAS ?
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decrease alertness and induce sleep.
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Give two functions of the reticular activating system?
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1./ Arousal or alerting system for cerebral cortes.
2./ maintaining consciousness |
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90% of the population is Left or Right brained when it comes to language?
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left
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lesions in "language areas are causes for what defect?
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aphasia
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this system forms the curving border of the corpus callosum, and plays a role in the "emotional brain"?
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Limbic system
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this system functions to make us experience; anger, fear, sexual feelings, and pleasure?
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limbic system
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what side of the brain is considered to controll dextarity more ?
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the left hemisphere
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