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Brain parts
Psyvh test
| Term | Definition |
|---|---|
| central nervous system | consists of brain and spinal cord |
| peripheral nervous system | made of nerve cells that send messages between ventral nervous system and the rest of the body |
| somatic nervous system | (voluntary muscles) transmits sensory messages to central nervous system |
| autonomic nervous system | (involuntary muscles) part of the brain that is involved in vital f functions such as heart rate, blood pressure and breathing |
| gene | basic building blocks of heredity, when 2 are combined they create traits |
| neuron | nerve cells that receive, process and transmit info |
| dendrite | part of the cell that branches out and receives info |
| myelin | protects axon (white fatty substance) |
| cell body/ soma | produces energy |
| chromosome | composed of DNA, where genes can be found |
| axon terminals | small fibers that branch out from the axon |
| hormone | stimulate growth and other reactions |
| neurotransmitter | chemicals that move across synapses to another neuron |
| limbic system | involved in learning, memory, emotion, hunger, sex and aggression |
| association areas | mainly shape info into something meaningful on which we can act |
| axon | carries messages away |
| synapse | junction between axon terminals and dendrites |
| spinal cord | column of nerves protected by bones and spine, involved in spinalreflexes |
| endocrine system | consists of glands that secrete hormones |
| heredity | transmission of characteristics from parents to offspring |
| nervous systems 2 main parts: | 1. central 2. peripheral |
| nervous system | regulates body's internal functions and the way a person acts |
| neurons 3 parts | 1. cell body 2. axon 3. dendrites |
| parasympathetic nervous system | prepares body for dealing with emergencies |
| sympathetic nervous system | calms body down after emergencies |
| hindbrain | regulates heart rate and blood pressure |
| midbrain | regulates vision and hearing |
| forebrain | regulates complex processes |
| action poential | brief change in electrical voltage between inside and outside of axon |
| EEG | recording of neural activity detected by electrodes |
| TMS | involves delivering a large current through a wire coil on a person's head |
| position emission tomography | method for analyzing biochemical activity in the brain using injections of glucose sensors detect radioactivity |
| MRI | method for studying brain tissues and body 3-D images |
| brain stem 3: | 1. pons 2. medulla 3. RAS |
| pons | involved in sleeping, walking and dreaming |
| medulla | responsible for certain automatic functions (breathing and heart rate) |
| RAS | arouses cortex and screens info |
| cerebellum | regulates movement and balance involved in remembering certain skills and acquired reflexes |
| thalamus | relays sensory info to cerebral cortex |
| hypothalamus | involved in emotions, vital to survival regulates automatic nervous system |
| pit gland | releases hormones |
| amygdala | responsible for arousal, regulation of emotion, and initial response to sensory info *emotional memory* |
| hippocampus | responsible for storage of new info in memory |
| cerebrum | largest brain structure in charge of most sensory motor and cognitive functions |
| corpus callosum | connects brain hemisphere, pathway of communication |
| cerebral cortex | gray matter around brain |
| lobes of cerebral cortex | 1. occipital (vision) 2. temporal (memory/perception) 3. parietal (somatosensory cortex) 4. frontal (emotion) |
Created by:
hibby243
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