neuron shit Flashcards
biological psychology
study of the links between biological and psychological processes
neuron
basic building block of the nervous system
dendrites
receives neural messages and sends impulse to cell body
axon
extension of neuron that passes messages through its branches to other neurons, muscles or glands
antagonist
molecule that binds to a receptor and inhibits a response
neurotransmitters
chemical messengers that cross the synapse between neurons
threshold
level of physical stimulation required to trigger an impulse
reputable
reabsorption of the neurotransmitter by the sending neuron
action potential
brief electrical charge that travels down an axon
endorphins
opiate-like neurotransmitters linked to pain control
refractory period
a period of inactivity after a neuron fires
synapse
the junction between the axon tup of the sending neuron and the dendrites of the receiving neuron
all-or-none response
neural reaction of either firing or not firing
myelin sheath
fatty tissue layer encasing the axon
agonist
molecule similar to a neurotransmitter that triggers a response
after placing your hand on a hot stove pain signals are sent from the sense receptors in your skin through______ to the spinal cord…
sensory neurons
to the spinal cord where a signal is processed by ______ and finally to the muscles in your hand…
interneurons
…and finally to the muscles in your hand via the_____ causing you to remove your hand form the stove
motor
when the morning announcements call for you to ride to recite the Pledge of Allegiance the signal to stand up on your feet is sent by way of which system
the somatic nervous system
the control of your heartbeat is regulated by which system
the autonomic nervous system
while taking your first AP exam a test that is causing you great anxiety what physical reactions will your body have due to the sympathetic nervous system
sweat, fast heart rate and breathing, digestion slowed, pupils dilated
