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elaboratedream67
chapters 2, 4, and 5
| Question | Answer |
|---|---|
| neuron | an individual nerve cell. pg. 48 |
| dendrites | neuron fibers that recieve incoming messages. pg. 48 |
| axon | fiber that carries information away from the cell body of a neuron. pg. 48 |
| centeral nervous system (CNS) | the brain and spinal cord. pg. 53 |
| peripheral nervous system (PNS) | all parts of the nervous system outside the brain and spinal cord: spmatic system;sutonomic system. pg. 53 |
| synapse | a micrscopic space between two neurons, over which messages pass. pg. 51 |
| cerebral cortex | the outer layer of the brain. pg. 60 |
| neurotransmitter | any chemical relased by a neuron that alters activity in other neurons. pg. 51 |
| action potentioal | a nerve impulse. pg. 49 |
| "split brains" | after the right and left brain are seperated, each hemisphere will have its own seperate perceptions, concepts, and impulses to act. pg. 62 |
| roger sperry | won a nobel prize for his remarkable discovery that the right and left brain hemispheres preform differently on tests of language, perception, music, and other capabilities. pg. 60 |
| association areas | association cortex; all areas of the cerebral cortex that are not primarily sensory or motor in function. |
| corticalization | an increase in the relative size of the cerebral cortex. pg. 60 |
| corpus collosum | a wide, flat bundle of neural fibers beneath the cortex in the eutherian brain at the longitudinal fissure. It connects the left and right cerebral hemispheres and facilitates interhemispheric communication. It is the largest white matter structure in the |
| limbic system | a system in the forebrain that is closely linked with emotional response: hypothalamus, thalamus, amygdala, hippocampus. pg. 69 |
| triune brain | a model of the evolution of the vertebrate forebrain and behavior; The triune brain consists of the reptilian complex, the paleomammalian complex (limbic system), and the neomammalian complex (neocortex |
| P. Mclean | triune brain |
| cerebellum | a brain structure that controls posture and cordination. pg. 67 |
| retilian brain | the reptilian complex was responsible for species typical instinctual behaviors involved in aggression, dominance, territoriality, and ritual displays. |
| brainstem | the lowest portions of the brain, including the cerebellum, medulla, pons, and reticular formation. pg. 67 |
| forebrain | functions to control cognitive, sensory and motor function, and regulate temperature, reproductive functions, eating, sleeping and the display of emotions. |
| medulla | the structure that connects the brain with the spinal cord and controls vital life fuctions. pg. 67 |
| broca's area | a language area related to grammar and pronunciation. pg. 63 |
| thalamus | a brain structure that relays sensory information to the cerebral cortex. pg. 68 |
| endocrine system | glands whose secretions pass directly into the bloodstream or lymph system. pg. 70 |
| amygdala | a part of the limbic system associated with fear response. pg. 69 |
| reticular formation (RF) | a network within the medulla and brainstem; associated with attention, alertness, and some reflexes. pg. 68 |
| reticular activation system (RAS) | a part of the riticular formation that activates the cerebral cortex. pg. 68 |
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elaboratedream67
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