NEW USAHS CLINICAL
NEUROSCIENCE EXAM 2
QUESTIONS WITH ACTUAL
ANSWERS 2024 UPDATED
What is the order of layers that protect the brain? - CORRECT ANSWER>>>>S- skin
C- connective tissue
A- aponeurosa
L- loose connective tissue
P- pericranium
Which layer of the meninges is perforated to allow room for cranial nerves and blood
vessels? - CORRECT ANSWER>>>>Dura mater
Separations of the ________ membranes create sinuses that are important for the
venous drainage system. - CORRECT ANSWER>>>>Dura
The _____________ layer has trabeculae that suspend the brain. - CORRECT
ANSWER>>>>Arachnoid
True or false:
Arachnoid granulation serve as one way valves to the duralumin sinus. - CORRECT
ANSWER>>>>True
True or false:
Dentate ligaments are pia mater. - CORRECT ANSWER>>>>True
What is significant about the epidural space? - CORRECT ANSWER>>>>It contains the
middle meningeal artery (a branch off of the external carotid)
What goes through foramen spinosum? - CORRECT ANSWER>>>>middle meningeal
artery
An ___________ _____________ is typically the result of traumatic rupture of the MMA
due to temporal bone fracture. May initially be asymptomatic but within hours have
increased ICP, herniation, and death. - CORRECT ANSWER>>>>Epidural hematoma
The ____________ space is between the dura and the arachnoid. Contains bridging
veins that cross at the subdural space and drain into the venous sinuses. - CORRECT
ANSWER>>>>Subdural
What is a subdural hematoma? - CORRECT ANSWER>>>>Rupture of the bridging
veins which are susceptible to shear forces. Two types: chronic (elderly) and acute
, The _______________ space is between the arachnoid and pia mater. Contains major
arteries of the brain as well as CSF. - CORRECT ANSWER>>>>Subarachnoid
What is a subarachnoid hemorrhage? - CORRECT ANSWER>>>>Two types:
traumatic and non traumatic, bleeding into the CSF, presents as a severe HA
Common herniations? - CORRECT ANSWER>>>>Central, tonsillar, uncal
transtenorial, *ONE MORE CHECK fig. 5.8)
The neural tube becomes the _____________. - CORRECT ANSWER>>>>Ventricles
The third ventricle is surrounded by the ____________. - CORRECT
ANSWER>>>>Diencephalon (thalamus)
What is the flow of CSF? - CORRECT ANSWER>>>>Lateral ventricles through the
foramen of Monroe to the 3rd ventricle through the cerebral aqueduct to the 4th
ventricle and out through the foramen of magendie
True or false:
The choroid plexus exists within each of the ventricles and is constantly producing CSF,
creating a small pressure gradient. - CORRECT ANSWER>>>>True (functions are
buoyancy, cushioning, cleaning, and ionic balance)
The choroid plexus is made of _____________ cells that produce CSF and assist in
circulating it by movement of their cilli. - CORRECT ANSWER>>>>Ependymal
_________ are large pockets in the subarachnoid space. - CORRECT
ANSWER>>>>Cistern
What is the cistern that is located between the cerebellum and medulla? - CORRECT
ANSWER>>>>Cisterna magna (cerebellar medullary cistern); other cisterns are
the pontine and interpeduncular.
There is a large cistern found in the lumbar area of the spine; it is useful because it
provides a place to extract ________ through a lumbar puncture. - CORRECT
ANSWER>>>>CSF
Normal CSF pressures? - CORRECT ANSWER>>>>Adult: 80-180mm of h2o
Obese adult: 250mm h2o
Infant: 10-100mm h2o
What is the normal visual appearance of CSF? - CORRECT ANSWER>>>>Sparkling
clear (abnormal would be cloudy or colored)
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