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Unit 2
The Brain
| Question | Answer |
|---|---|
| PET Scan | records biochemical rxn’s in brain as they occur |
| MRI | Magnetic fields & radio waves produce vibrations in the nuclei of atoms—the vibrations are recorded |
| BRAIN STEM | passageway to upper/lower portions of the brain |
| Medulla | mechanical fx’s: breathing, heart rate |
| Pons | attention, sleeping/walking, dreaming |
| Reticular Activating System | network of neurons that screens info & alerts other areas of brain if necessary… “secretary” |
| Cerebellum | balance, precise mvt’ |
| Hypothalamus | Controls important basic drives in brain |
| Thalamus | directs sensory info to proper areas of brain (visual, auditory, etc…) |
| Pituitary gland | master gland—2nd in command—takes orders from hypothalamus—sends messages to other endocrine glands |
| EEG | records brain waves (electrical patterns |
| Limbic System | forms a border b/t higher/lower parts of the brain |
| Amygdala | part of limbic system—evaluating sensory info for emotional importance |
| Hippocampus | part of limbic system—evaluates sensory info & compares to prior knowledge |
| Cerebrum | Center of higher level thinking |
| Corpus Callosum | connects right & left hemispheres |
| Occipital Lobe | Contains visual cortex |
| Parietal Lobe | Somato-sensory Cortex—pressure, pain, touch, temp |
| Temporal Lobe | Auditory cortex– “Wernicke’s area”—Language components |
| Frontal Lobe | Motor Cortex– “Broca’s Area”—Speech Production |
Created by:
atercs
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