ch 2 brain and nervous system test Flashcards
MISSED QUESTION: which area of the body has the largest number of sensory neurons?
lips
if your teacher accused you of cheating on a test, your adrenal glands would probably release _______ into your bloodstream
epinepherine
a synapse is a….
space between a sending and recieving neuron
Psychologist Michael Gazzaniga asked split-brain patients to stare at a dot as he flashed “HE.ART” on a screen. HE appeared in the left visual field, ART in the right visual field. When asked, patients said they saw:
ART
The speed at which a neural impulse travels is increased when the axon is encased by an intact:
myelin sheath
When Malia was a child, a brain disease required the surgical removal of her left cerebral hemisphere. Malia is now a successful high school student who lives a normal life. Her success best illustrates the importance of:
plasticity
While you are hiking in the mountains, a rattlesnake slithers across your trail. Which of the following triggers the “fight or flight” response, increasing your heart rate and blood pressure, as you run away?
sympathetic nervous system
MISSED: Researchers conducted an experiment on baboons by inserting a wire into the reticular activating system (RAS) that produced a mild electrical current. The researchers stimulated the RAS while the baboons were performing different tasks. Which of the following operational definitions would be most easily replicated by other researchers trying to duplicate the experiment?
The baboons heart rates were measured by a monitor attached to their chest before and after the RAS was stimulated
The medulla’s main function is control of _____________ and the cerebellum to control _____________.
breathing, walking
Which endocrine gland regulates the balance of insulin?
pancreas
Blindness could result from damage to which cortex and lobe of the brain?
visual cortex in the occipital lobe
Kara thinks she sees a spider on the floor of her bathroom. She is extremely afraid of spiders. Upon further inspection, though, she realizes the “spider” is only a ball of hair. Which of the following nervous systems would be responsible for calming her down after she realizes the ball of hair is not a spider?
parasympathetic nervous system
Which term relates to the impaired ability or use of language?
aphasia
Sleep researchers who are interested in brain wave activity are likely to use which kind of brain scan?
EEG
Molecules that are similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and block that neurotransmitter’s effects are called what?
antagonists
The parietal lobes are to ___________ as the occipital lobes are to _____________.
sensing touch, seeing
Neurosurgeons sever the corpus callosum in human patients in order to reduce or eliminate:
epileptic seizures
Which part of your brain receives information that you are moving your legs?
sensory cortex
For you to be able to run, ___________ must relay messages from your central nervous system to your leg muscles.
motor neurons
At the age of 26, Ms Tammy was less than 4 feet tall. Her short stature was probably influenced by the lack of a growth hormone produced by the:
pituitary gland
The tremors of Parkinson’s disease result from the death of nerve cells that produce the neurotransmitter:
dopamine
People who have severe damage to the frontal lobe of the brain seldom regain their ability to:
make and carry on plans
James Olds discovered that rats would willingly cross an electrified floor in order to electrically stimulate areas within their:
hypothalmus
An institutional review board (IRB) rejected a proposal for research where participants requesting to lesion Wernicke’s Area in otherwise healthy individuals to study the resulting speech comprehension issues. Which of the following is the most likely ethical consideration for rejecting the study?
protection from harm
