The dural sinuses form between which two layers of the cranial dura mater?
A) pia and arachnoid layers
B) periosteal and endosteal layers
C) meningeal and cranial layers
D) periosteal and meningeal layers
E) superior and inferior sagittal layers
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Question 2) Two large venous sinuses, the sagittal sinuses, lie within a dural fold called the
A) cerebral aqueduct.
B) basal ganglia.
C) falx cerebri.
D) tentorium cerebelli.
E) septum pellucidum.
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Question 3) Chambers within the brain that contain cerebrospinal fluid are called
A) plexuses.
B) ganglia.
C) sinuses.
D) aqueducts.
E) ventricles.
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Question 4) In each ventricle is a blood vessel network called the ________ that produces cerebrospinal fluid.
A) choroid plexus
B) jugular vein
C) carotid artery
D) vertebral artery
E) dural sinus
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Question 5) To return CSF to circulation, arachnoid granulations extend into the
A) subarachnoid space.
B) superior sagittal sinus.
C) carotid canal.
D) inferior sagittal sinus.
E) jugular foramen.
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Question 6) Hydrocephalus, or water on the brain, may result from
A) deficient production of cerebrospinal fluid.
B) excessive production of cerebrospinal fluid.
C) blockage of circulation of CSF.
D) excessive water intake.
E) blockage of CSF circulation or excessive CSF production.
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Question 7) Which statement is true regarding cerebrospinal fluid?
A) CSF is identical in composition to blood plasma.
B) CSF is made during fetal development and does not change through the lifetime of the person.
C) There is about a liter of CSF within the brain and spinal cord.
D) If CSF is not properly resorbed, the result would be hydrocephalus.
E) CSF moves back into the blood supply by the process of osmosis.
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Question 8) Which of the following is not a function of cerebrospinal fluid?
A) provides cushioning for delicate neural tissues
B) provides buoyant support for the brain
C) acts as a transport medium for nutrients
D) produces ATP for impulse transmission
E) acts as a transport medium for waste products
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Question 9) What contains a spider web-like network of cells and fibers through which cerebrospinal fluid flows?
A) subdural space
B) dural sinus
C) falx cerebri
D) subarachnoid space
E) pia mater
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Question 10) Cerebrospinal fluid enters the blood circulation at the
A) jugular veins.
B) central canal.
C) arachnoid granulations.
D) tentorium cerebelli.
E) frontal sinus.
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