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psych chapter 2

TermDefinition
genotype an organisms genetic makeup
phenotype an organisms physical/ observable characteristics
endocrine system hormonal system and glands secrete chemical changes into your blood
motor neurons carry messages from your CNS to your muscles and glands
sensory neurons carries messages from sense receptors towards CNS (spinal cord and brain)
dopamine is a neurotransmitter
plasticity ability of the nervous system to adapt or change
sympathetic division part of the PNS responsible for the arousing of your body in times of stress or danger (fight or flight)
somatic nervous system voluntary system deals with voluntary movements
how are PNS and CNS separate? CNS (brain and spinal cord) PNS (all the other nerves)
what is PNS and acronym for? Peripheral Nervous System
Autonomic Nervous System part of the PNS and deals with involuntary movements (fight or flight)
dendrites receive messages from other neurons
myelin sheath coats and protects the axon and speeds up the neural impulse
synapse the gap between two neurons
prefrontal cortex where the executive functions take place, personality functions
parietal lobe main job is bodily sensation/ touch
temporal lobe processes audition/ sound
limbic system deals with emotions
reticular formation screens out background noise/ controls alertness
hippocampus part of the limbic system involved in establishing long term memories
thalamus relays sensory information (not smell), known as the great relay station of the brain
what is the structure that screens out background noise? reticular formation
pituitary gland regulates glands all over the body, known as the master gland, tells other glands what to do
emigula mediates fear and aggression
Created by: nunez077
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