AP TEST review unit 2 biological bases of behavior Flashcards
types of neurons
sensory, motor, interneurons
sensory neurons
carry information from sensory receptors to brain/spinal cord (perceiving something as hot)
motor neurons
carry outgoing info from brain to muscles/glands; clenching a fist
interneurons
communicate internally between sensory inputs/motor inputs; located within brain/spinal cord (reflexes)
action potential
neural impulse; brief electrical charge that travels down an axon generated by a movement of positively charged atoms in/out of channels down axon’s membrane
depolarization
postive and negative ions enter the neuron, starts action potential, impulse
hyerpolorization
only negative ions enter neuron, resetting/refactory
refractory period
after a neuron has fired an action potential it pauses for a short period to recharge itself to fire again
neurotransmitters
released from sending neurons, travel across synapse, bind to receptor sites on receiving neuron, influencing it to generate action potential
agonists
fools body, tells brain to produce moreant
agonist
limits/hinders/blocks neurotransmitters from going to one neuron from another
amygdala
emotions of fear and angerh
hippocampus
structure in limbic system which is responsible for the formation of most new memories (explicit memories, facts)
hypothalamus
directs maintenance activities (eating, drinking, body temp, emotions)
cerebral cortex
fabric; control and information processing center