exam 2 Questions and Answers
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What is the order of layers that protect the brain? -
Answer: S- skin
C- connective tissue
A- aponeurosa
L- loose connective tissue
P- pericranium
Question: Which layer of the meninges is perforated to allow room for cranial
nerves and blood vessels? -
Answer: Dura mater
,Question: Separations of the ________ membranes create sinuses that are
important for the venous drainage system. -
Answer: Dura
Question: The _____________ layer has trabeculae that suspend the brain. -
Answer: Arachnoid
Question: True or false:
Arachnoid granulation serve as one way valves to the duralumin sinus. -
Answer: True
Question: True or false:
Dentate ligaments are pia mater. -
Answer: True
Question: What is significant about the epidural space? -
Answer: It contains the middle meningeal artery (a branch off of the external
carotid)
,Question: What goes through foramen spinosum? -
Answer: middle meningeal artery
Question: 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. -
Answer: Epidural hematoma
Question: The ____________ space is between the dura and the arachnoid.
Contains bridging veins that cross at the subdural space and drain into the venous
sinuses. -
Answer: Subdural
Question: What is a subdural hematoma? -
Answer: Rupture of the bridging veins which are susceptible to shear forces. Two
types: chronic (elderly) and acute
, Question: The _______________ space is between the arachnoid and pia mater.
Contains major arteries of the brain as well as CSF. -
Answer: Subarachnoid
Question: What is a subarachnoid hemorrhage? -
Answer: Two types: traumatic and non traumatic, bleeding into the CSF, presents
as a severe HA
Question: Common herniations? -
Answer: Central, tonsillar, uncal transtenorial, *ONE MORE CHECK fig. 5.8)
Question: The neural tube becomes the _____________. -
Answer: Ventricles
Question: The third ventricle is surrounded by the ____________. -
Answer: Diencephalon (thalamus)
Question: What is the flow of CSF? -