psych ch 2: biological perspectives

two main branches of the nervous system

central and peripheral

what does the central nervous system contain

the brain and spinal cord

dendrites

receive incoming signals from other neurons

post synaptic signals

signals that arrive at the post synaptic neuron

axons

send outgoing signals to axon terminals

pre-synaptic signals

signals that exit the neuron

cell membrane

separates the inside of the cell from the extracellular fluid

what kind of signal is an action potential

electrical signals

what kind of signal happens between 2 neurons

chemical signals

what does it mean that a neuron’s cell membrane is semi-permeable

ions are on either side of cell going in and out

neurotransmitter

chemical found in synaptic vesicles, when released, have an effect on the next cell

synapse

microscopic fluid filled space

receptor

proteins on the surface of dendrites shaped to fit certain neurotransmitters

ion

charged particles

ion channel

small pores in the cell membrane of neurons where ions can flow

frontal lobe function

executive function

temporal lobe function

auditory

parietal lobe function

touch, attention, spatial

occipital lobe function

vision