CLINICAL NEUROSCIENCE: EXAM 2 QUESTIONS AND ANSWERS (VERIFIED AND UPDATED)

CLINICAL NEUROSCIENCE: EXAM 2
QUESTIONS AND ANSWERS (VERIFIED
AND UPDATED)




What structures make up the scalp? - ANS Skin


Subcutaneous connections


Galea Aponeurosis


Loose area connective tissue


Pericranium


What is the purpose of the scalp? - ANS Protect brain from outside forces


Even though the skull provides a strong barrier to protect the brain. What acts as a secondary
line of defense over the brain? - ANS Meningies


The meninges cover both brain and spinal cord forming a tight seal with three membrane
structure. What are those 3 membranes? - ANS Dura mater


Arachnoid mater

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,Pia mater


What is the most outermost layer of the meninges? It is also the thickest and toughest
membrane. - ANS Dura mater


List the layers of the meninges from the innermost layer to the outermost layer - ANS Pia
mater


Arachnoid mater


Dura mater


What layer of meninges is perforated to allow cranial nerves and blood vessels to pass through?
- ANS Dura mater


What function does the dura mater has, because it is a perforated layer? - ANS Allows cranial
nerves and blood vessels to pass though


What are the 2 layers of the outmost layer, the dura mater? - ANS Periosteal layer


Meningeal layer


Where does the spinal dura meet with the meningeal layer? - ANS Foramen magnum


Separations of the dura membranes create what? - ANS Sinuses


Sinuses are separations of the dura membranes. Why are they important? - ANS Venous
drainage system functions


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,What is a fold in the dura? - ANS Septums


Septums are dura folds in a few places that have what function? - ANS Separates brain
structures


What is the function of the fold of dura in the longitudinal fissure? What is this structure called?
- ANS Falx Cerebri


Seperates the right and left hemispheres


What are the 2 main folds of dura in the brain? - ANS Falx Cerebri


Tentorium cerebelli


What is the falx cerebri? - ANS Dura fold that separates the right and left hemisphere in
longitudinal fissure


What is the tentorium cerebelli? - ANS Dura fold occurs at back of brain and divides cerebral
hemispheres from cerebellum


What is the dura fold that primarily divides the occipital lobes from the cerebellum? -
ANS Tentorium cerebelli


What part of the dura mater is important for venous drainage systems? - ANS Sinuses


The periosteal layer and meningeal layer are part of what meninges structure? - ANS Dura
mater




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, How can the falx cerebri and tentorium cerebelli cause damage to brain tissue? - ANS When
head is moved or stopped quickly, the brain tissue can move and abrade at the dural edges
causing lacerations


What brain structures would the falx cerebri and the tentorium cerebelli most likely damage
during a high speed impact to the head? - ANS Falx Cerebri: Corpus callosum could be
damaged


Tentorium Cerebelli:


Midbrain


Oculomotor nerve


What meninges layer adheres to the dura mater - ANS Arachnoid mater


What is the thin mininge layer that is thinner and more delicate than the dura but not as
delicate as the pia mater - ANS Arachnoid mater


The arachnoid mater gets it's name because it has a _______________ appearance -
ANS Spiderweb like


Describe the location of the arachnoid membrane - ANS In middle layer of meninges layer
between dura and pia.


What is the function of the subarachnoid space? - ANS Suspend the brain


What space is between the pia and arachnoid layers and has trabeculae that suspend the brain?
- ANS Subarachnoid space




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