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Psych 2
Biology
| Term | Definition |
|---|---|
| Central ns | brain and spinal cord |
| Peripheral ns | nerves that extend to all parts of body |
| Somatic ns | voluntary muscles |
| Autonomic ns | involuntary muscles |
| Sympathetic ns | expends energy, increases bodily arousal |
| Parasympathetic ns | conserves energy / returns heart rate and other body processes to normal |
| Acetylcholine | movement and memory |
| Afferent(sensory) | relay information from the body to the brain |
| All or none principal | neuron will either fire completely or not at all |
| Amygdala | violent emotions |
| Axon | long fiber that transmits messages to other neurons |
| Bilateral | left side of the brain controls the right side of the body and vice versa |
| CAT | x-rays to view brain structure |
| Cell body | contains the nucleus and supplies the energy needed for the reaction |
| Cerebellum | posture and balance |
| Cerebral cortex | outer layer of cerebrum(wrinkly part) |
| Cerebrum | thinking |
| Corpus Callosum | connects the two hemispheres of your brain |
| Dendrite | branches that receive messages from other neurons |
| Dizygotic twins | fraternal twins, 50% genes |
| Dopamine | related to learning, movement, and pleasure |
| EEG | records millions of neurons at a time. |
| Efferent (motor) | relay information from the brain to the body |
| Endocrine system | send hormones throughout body, pituitary gland is master gland |
| Forebrain | largest, most complex, covers central core |
| Frontal Lobe | high thinking, emotions, movement(Phineas Gage) |
| Hemisphere | halves of the brain |
| Heredity | the transmission of certain traits from parents to their children through physical structures called genes |
| Hindbrain | back of our skull, primitive processes |
| Hippocampus | form new memories |
| Hippocrates | first to theorize that our feelings and thoughts came from our brain |
| Hormone | Chemical messages, control growth, energy level and physical development |
| Hypothalamus | controls instinctive behavior, such as hunger, thirst, and temperature |
| Interneuron | relay information within the brain or body only |
| Limbic system | thalamus, hypothalamus, amygdala, and hippocampus |
| Medulla | breathing, heart rate, and reflexes |
| Midbrain | sensory info to forebrain |
| Monozygotic | identical twins, same genes |
| MRI | radio frequencies and magnets for detailed pic |
| Myelin | fatty glaze, insulates axons, contains gaps called nodes of ranvier. |
| Nature vs Nurture | genes or environment |
| Neuron | long, thin cells of nerve tissue that send messages to and from the brain |
| Neurotransmitter | brain chemical |
| Occipital Lobe | vision |
| Parietal Lobe | body sensations |
| PET | injection of radioactive substance to see which parts are active |
| Reticular activating system (RAS) | in midbrain, tells us when to stay alert |
| Synapse | gap between two neurons |
| Temporal Lobe | hearing, advanced visual processing |
| Thalamus | sends information from all of the senses (except smell) to the correct area of the brain |
| Broca's area | production of language |
| Wernicke's area | understanding of language |
Created by:
nailea89326
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