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Modules 5 and 6

Lesion Tissue destruction, A brain _____ is a naturally/experimentally caused destruction of brain tissue
EEG Amplified recording of waves of electrical activity that sweep across the brain's surface. These waves are measured by electrodes placed on scalp
PET Scan Visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task
MRI Technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissue; shows brain anatomy
fMRI Technique for revealing bloodflow and brain activity by competing MRI scans; show how brain functions
Brainstem Oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; responsible for automatic survival functions
Reticular Formation Nerve network in brainstem that plays important role in controlling arousal
Medulla Base of brainstem; controls heartbeat and breathing
Thalamus Brain's sensory switchboard; located on top of brainstem; directs messages to sensory receiving areas in cortex and transmits replies to the cerebellum and medulla
Cerebellum "Little Brain" at rear of brainstem; processes sensory input and coordinates movement output and balance
Limbic System Neural system located below cerebral hemispheres, associated with emotions and drive Includes hippocampus, hypothalamus, and amygdala
Amygdala Two lima-bean sized neural clusters in limbic system; linked to emotion
Hypothalamus Neural structure lying below thalamus; directs several maintenance activities; helps govern endocrine system via the pituitary gland; linked to emotion and reward
Cerebral Cortex Intricate fabric of interconnected neural cells covering the cerebral hemispheres; body's ultimate control and information-processing center
Glial Cells Cells in nervous system that protect, support, and nourish neurons
Frontal Lobes Portion of cerebral cortex lying just behind the forehead; involved in speaking and muscle movement and making plans and judgements
Parietal Lobes Portion of cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position
Temporal Lobes Portion of cerebral cortex lying roughly above the ears; includes auditory areas, each receiving information primarily from opposite ear
Occipital Lobes Portion of cerebral cortex lying at back of head; includes are that receive information from visual fields
Motor Cortex Area at the rear of the frontal lobes that controls voluntary movements
Sensory Cortex Area at the front of the parietal lobes that registers and processes body touch and movement sensations
Association Areas Areas of the cerebral cortex that are not involved in primary motor/sensory functions; involved in higher mental functions such as learning, remembering, thinking, and speaking
Plasticity Brain's ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience
Neurogenesis Formation of new neurons
Corpus Callosum Large band of neural fibers connecting the two beain hemispheres and carrying messages between them
Split Brains Condition resulting from surgery that isolates the brain's two hemispheres by cutting fibers (mostly corpus callosum) connecting them
Created by: alengner