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Psych Chapter 2 Online Mult. Choice

Terms in this set (40)

Which of the following was a major problem w/ phrenology?
the brain is not neatly organized into structures that correspond to our categories of behavior.
A biological psychologist would be MORE likely to study
the chemical changes that accompany emotions.
Dr. Hernandez is studying neurotransmitter abnormalities in depressed patients. She wud describe herself as a:
biological psychologist
The axons of certain neurons are covered by a layer of fatty tissue that helps speed neural transmission. It is:
the myelin sheath
During an action potential, the electrical state of the axon becomes:
depolarized, as positively charged atoms are admitted
In a resting state, the axon is:
polarized w/ mostly positively charged ions outside and negatively charged ions inside.
Which is the correct sequence in the transmission of a neural impulse?
dendrite, cell body, axon, synapse
a neuron will generate action potentials more often when it
receives more excitatory than inhibitory inputs.
A strong stimulus can increase the
# of times the neuron fires
Several shy neurons send an inhibitory msg to neighboring neuron, Joni. At same time, a larger group of party-going neurons send Jni excitatory msgs. What will Joni do?
Fire, assuming that her threshold has been reached
Since Malcolm has been taking a drug prescribed by his dr, he no longer enjoys the little pleasures of life, such as eating and drinking. His dr explains it's because the drug
inhibits release of dopamine.
the neurotransmitter AcH is most likely to be found
at the junction between motor neurons and muscle fibers.
Melissa has just completed running a marathon and she's so elated that she feels little fatigue or discomfort. Her lack of pain is probably the result of the release of
endorphins
The pain of heroin w/drawal may be attributed to the fact that:
under the influence of heroin, the brain ceases production of endorphins
the effect of a drug that is an agonist is to:
mimic a particular neurotransmitter
agonists are mimickers
Parkinson's disease involves
the death of nerve cells that produce a vital neurotransmitter.
Heartbeat, digestion, and other self-regulating bodily functions are governed by the:
autonomic nervous system
Voluntary movements, such as writing w/ a pencil, are directed by the:
somatic nervous system
Following Jayshree's near-fatal car accident, her physician noticed that the pupillary reflex of her eyes was abnormal. This MAY indicate that what was damaged in the accident?
autonomic nervous system
Your brother has been taking prescription medicine and experiencing side effects, like rapid heartbeat and excessive perspiration. It is likely that the medicine is exaggerating activity in the:
sympathetic nervous system
When sandy scaled her toe in a tub of hot water, the pain msg was carried to her spinal cord by the ____ nervous system.
somatic
Which is the correct sequence in the transmission of a simple reflex?
sensory neuron->interneuron->motor neuron
Which of the following are/is governed by the simplest neural pathways?
reflexes
You are able to pull your hand quickly away from hot water b4 pain is felt because:
movement of the hand is a reflex that involves intervention of the spinal cord only.
In the brain, learning occurs as experience strengthens certain connections in cell work groups called
neural networks
Chemical messengers produced by the endocrine glands are called:
hormones
I am a relatively slow-acting (but long-lasting) chemical messenger carried throughout the body by the bloodstream. What am I?
a hormone
The gland that regulates body growth is the
pituitary gland
Epinephrine and norepinephrine are ____ that are released by the ______ gland.
hormones;adrenal
A bodybuilder friend suddenly seems to have grown several inches in height. U suspect that your friend's growth spurt has occurred because he has been using drugs that affect the
pituitary gland
The brain research technique that involves monitoring the brain's usage of glucose is called the
PET scan
The technique that uses magnetic fields and radio waves to produce computer images of structures w/in the brain is called
MRI
In primitive vertebrae animals, the brain primarily regulates ______; in lower mammals, the brain enables _____.
survival functions;emotions
The part of the human brain that is most like that of a fish is the:
brainstem
Following a head injury, a person has ongoing difficulties staying awake. Most likely, the damage occurred to the:
reticular formation
Moruzzi and Magoun caused a cat to lapse into a coma by severing neural connections between the cortex and the
reticular formation
Jessica experienced difficulty keeping her balance after receiving a blow to the back of her head. it is likely that she injured her:
cerebellum
Dr. Frankenstein made a mistake during neurosurgery on his monster. After operation, the monster "saw" w/ his ears and "heard" w/ his eyes. It is likely that Dr. Frankenstein "rewired" neural connections in the monster's:
thalamus
Though there is no single "control center" for emotions, their regulation is primarily attributed to the brain region known as the:
limbic system
A scientist from another planet wishes to study the simplest brain mechanisms underlying emotion and memory. You recommend that the scientist study the:
limbic system of a dog
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