biopsychology Flashcards
fight or flight
adrenaline is released to the bloodstream which causes psychological changes
what makes up the central nervous system
brain
spinal chord
left hemisphere of the brain
language
analytical thinking
logic
right hemisphere of the brain
artistic
musical
structure of a neuron
cell body
nucleus
dendrites
axon
myelin sheath
nodes of ranvier
terminal buttons
nucleus
contains genetic information
dendrites
branch like structures that carry nerve impulses from neighboring neurons
axon
carries impulses away from the cell body down the length of the neuron
myelin sheath
fatty layer which protects axon and speeds up electrical transmission
nodes of ranvier
gaps between the myelin sheath which speed up transmission by forcing it to jump across the gaps of the axon
terminal buttons
at the end of the axon
communicates with the net neuron
sensory neuron
found in receptors
found in eyes, ears, tongue + skin
when impulses reach the brain they are translated into sensations
not all SN reach the brain as some stop at the spinal chord (reflex)
relay neuron
found between sensory input and motor response
found in brain and spinal chord
allows sensory and motor neurons to communicate
motor neurons
found in central nervous system
controls muscle movements
when stimulated they release neurotransmitters that bind to receptors on muscles to trigger a response
chemical impulse
between neurons
synaptic transmission
