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Psych Chapter 3
Term | Definition |
---|---|
Limbic System | Important for learning and emotional behavior. Contains Hippocampus, amygdala and hypothalamus |
Corpus Callosum | part that connects the hemispheres of the brain |
Occipital Lobe | vision |
Parietal Lobe | receives tough and body position |
Temporal Lobe | auditory areas |
Frontal Lobe | speaking muscles moving , plans and judgement |
Association Areas | higher functions like memory, thinking, speaking. |
Hypothalamus | pleasure center and controls hunger and body temp |
Cereberal Cortex | Ultimate control and information processing center |
Sympathetic Nervous system | fight or flight |
Parasympathetic Nervous System | calming of the body |
Thalamus | transfers information from sensory recpetors to the brain |
Brain Stem | where spinal cord meets the brain |
Cerebellum | coordinates the body's movements |
Pons | sleep wake cycle |
medulla | controls heart rate breathing and blood pressure |
plasticity | the idea that the brain can be changed structurally and chemically via experiences |
peripheral nervous sytem | Consists of sympathetic and parasympathetic. connects the central nervous to brain/spinal cord |
receptor site | locations on receptor neuron for specific neurotransmitters |
neurotransmitters | chemicals released by synaptic vescicles |
synaptic vesicles | sacs in terminal button that release the chemicals |
all or none law | a neuron either fires or it does not |
terminal button | enlarged area at the end of an axon |
synapse | contains terminal buttons of one neuron, the synaptic space and the dendrites of the cell body of the receiving neurons |
polarization | when the neuron is at rest |
relative refractory period | when the neuron fires with strong stimulus |
absolute refractory period | period were the neuron will and cannot send another message |
ions | charged particles |
glial cells | Creates the myelin sheath |
myelin sheath | fatty stuff around axon that speeds up the neuron impulse |
sensory neurons | carries information from sensory system to the brain |
interneurons | Carrys information between other neurons |
motor neurons | carry information from brain to muscles and glands |
axon | sender |
dendrite | receiver |
nerve | Sends and receives information. Contains axon and dendrites |