Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

AP Psychology Unit 3

Biological Bases of Behavior

biological psychology biological psychologya branch of psychology concerned with the links between biology and behavior
neuron a nerve cell; the basic building block of the nervous system
sensory neurons neurons that carry incoming information from the sensory receptors to the brain and spinal cord
motor neurons neurons that carry outgoing information from the brain and spinal cord to the muscles and glands
interneurons neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs
dendrite the bushy, branching extensions of a neuron that receive messages and conduct impulses toward the cell body
axon the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands
myelin sheath a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next
action potential a neural impulse; a brief electrical charge that travels down an axon
threshold the level of stimulation required to trigger a neural impulse
synapse the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
neurotransmitters chemical messengers that cross the synaptic gaps between neurons
reuptake a neurotransmitter’s reabsorption by the sending neuron
endorphins “morphine within”—natural, opiatelike neurotransmitters linked to pain control and to pleasure
nervous system the body’s speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous systems
central nervous system the brain and spinal cord
peripheral nervous system the sensory and motor neurons that connect the central nervous system (CNS) to the rest of the body
nerves bundled axons that form neural “cables” connecting the central nervous system with muscles, glands, and sense organs
somatic nervous system the division of the peripheral nervous system that controls the body’s skeletal muscles
autonomic nervous system the part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart). Its sympathetic division arouses; its parasympathetic division calms
sympathetic nervous system the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations
parasympathetic nervous system the division of the autonomic nervous system that calms the body, conserving its energy
reflex a simple, automatic response to a sensory stimulus, such as the knee-jerk response
endocrine system the body’s “slow” chemical communication system; a set of glands that secrete hormones into the bloodstream
hormones chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and affect other tissues
adrenal glands a pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress
pituitary gland the endocrine system’s most influential gland. Under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands
Acetylcholine enables muscle action, learning, and memory
Acetylcholine with Alzheimer's disease, ACh-producing neurons deteriorate
Dopamine influences movement, learning, attention, and emotion
Dopamine Excess receptor activity of this neurotransmitter is linked to schizophrenia. Starved of dopamine produces Parkinson's disease
Serotonin Affects mood, hunger, sleep, and arousal
Serotonin Undersupply linked to depression
Norepinephrine helps control alertness and arousal
Norepinephrine undersupply can depress mood
GABA (gamma-aminobutyric acid) Major inhibitory neurotransmitter
GABA (gamma-aminobutyric acid) undersupply lined to seizures, tremors, and insomnia
Glutamate major excitatory neurotransmitter; involved in memory
Glutamate oversupply can produce migraines or seizures
lesion tissue destruction
electroencephalogram (EEG) an amplified recording of the waves of electrical activity that sweep across the brain’s surface. These waves are measured by electrodes placed on the scalp
CT (computed tomography) scan a series of X-ray photographs taken from different angles and combined by computer into a composite representation of a slice through the body. Also called CAT scan
PET (positron emission tomography) scan a visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task
MRI (magnetic resonance imaging) a technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissue.
Created by: mbehm
Popular Psychology sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards