USAHS clinical neuroscience exam 2 questions and answers
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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 ...
USAHS clinical neuroscience exam 2
questions and answers 2024-2025
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
USAHS clinical neuroscience exam 2
, USAHS clinical neuroscience exam 2
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)
What is a normal cell count for CSF? -Correct Answer ✔normal: <5 wbc's/mm^3
suspicious: >5 up to 10 wbc's/mm^3
pathological: >10 wbc's/mm^3
USAHS clinical neuroscience exam 2
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