1. Research that is performed within or on a living organism is referred to as: In vivo
2. Research using tissue or cells that have been removed from a living or- ganism and
experiments performed under conditions that are as close to biologically relevant as possible
is referred to as: Ex vivo
3. Research that uses cells, tissue, or other substrates (i.e., enzymes, HeLa cells) and performs
experiments with them under conditions that are far removed from their original biological
context. For example, "artificial insem- ination.": In vitro
4. Nerve fibers carrying sensory information from the periphery to the central nervous system
would be referred to as: Afferent fibers
5. Phineas Gage lost almost the entirety of his left temporal lobe in a work acci- dent. Much of
what we know about behavior comes from studying individuals such as Gage. These are what we
refer to as:: Case studies
6. The central nervous system is composed of:: Brain & spinal cord
7. A somatic efferent nerve fiber is most likely carrying "information" to do what?: Perform
motor movements
8. A scientist performing an fMRI on a chimpanzee while the animal performs a memory task
would be referred to as what type of research?: In vivo
9. A major yet broad role of the parasympathetic nervous system is to do what?: Rest &
digest
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, PSY 251 Exam 1 Review questions and Answers
10. Consider the following scenario: researchers remove a portion of a rat's brain and quickly
perform experiments on it while keeping the tissue in conditions that almost exactly match the
conditions within the brain. This type of experiment would be an example of: Ex vivo
11. This group of brain regions forms a circuit that controls motivation, mo- tion/movement,
and some executive functioning:: Basal ganglia
12. This cranial nerve transmits tongue efferent information (not related to swallowing)::
Hypoglossal
13. These cells are found in the CNS and myelinate neuronal axons:: Oligoden- drocytes
14. This layer of the meninges is filled with cerebral spinal fluid that helps us to provide support
and physical protection for the CNS:: Subarachnoid space
15.This brain region in the myelencephalon maintains core life functions such as cardiac
function and breathing:: Medulla
16. The large tracts of fibers that connect the right and left hemispheres of the brain together
allowing for information to be passed between them are known as the:: Corpus callosum
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