chapter 2 Flashcards
neurons
communicated with our body
dendrites
receives the signal
cell body
“soma” hits the axon hillock
axon hillock
decides whether a signal goes through
nodes of ranvier
parts of the axon not cover by the myelin sheath
terminal buttons
small knobs at the end of an axon
agonist drugs
increase the action of neurotransmitter
ex: zolaft
antagonist
block the functioning of neurotransmitter
ex: propranolol
central nervous system
compromised of the brain and spinal cord
peripheral nervous system
connects the central nervous system to the rest of the body
somatic nervous system
part of the neurons system we have control over
autonomatic nervous system
part we don’t have control over
sympathetic nervous system
prepares our body for danger
parasympathetic nervous system
brings our body back to neutral
hindbrain
“medulla” regulating heart rate, circulation and resperation
cerebellum
controls our fine motor skills
pons
sends info to the cerebellum and the rest of the brain
tectum
orients us in our environment
tegmentum
orients us in our environment also responsible for movement and arousal
cerebral cortex
most outer layer of your brain
