OSSF Exam III Practice Neurology Questions
And Correct Answers (Verified Answers)
CSF is critical for removal of waste products from the brain. Which statement about CSF is
false?
a. CSF is found between the arachnoid and pia layers of the meninges
b. CSF is produced by astrocytes
c. CSF is regenerated several times a day
d. CSF drains into the sinuses and lymphatic vessels
e. CSF provides nutrients to the brain and spinal cord - CORRECT ANSWER -b. CSF is
produced by astrocytes
CSF is produced in the choroid plexus of the ventricles of the brain by ependymal cells
Muscle length is coded in the central nervous system based on which of the following?
a. the amplitude of action potentials in muscle spindle fiber afferents
b. the amplitude of action potentials in Golgi tendon organ afferents
c. the frequency of action potentials in muscle spindle fiber afferents
d. the frequency of action potentials in Golgi tendon organ afferents
e. the frequency of action potentials in upper motor neurons - CORRECT ANSWER -c. the
frequency of action potentials in muscle spindle fiber afferents
Which regions of the spinal cord receive sensory afferents from and send motor efferents to the
thoracic and pelvic limbs respectively?
a. C6-T2 and T3-L3
b. T3-L3 and L4-S3
c. C1-C5 and L4-S3
d. C6-T2 and L4-S3
And Correct Answers (Verified Answers)
CSF is critical for removal of waste products from the brain. Which statement about CSF is
false?
a. CSF is found between the arachnoid and pia layers of the meninges
b. CSF is produced by astrocytes
c. CSF is regenerated several times a day
d. CSF drains into the sinuses and lymphatic vessels
e. CSF provides nutrients to the brain and spinal cord - CORRECT ANSWER -b. CSF is
produced by astrocytes
CSF is produced in the choroid plexus of the ventricles of the brain by ependymal cells
Muscle length is coded in the central nervous system based on which of the following?
a. the amplitude of action potentials in muscle spindle fiber afferents
b. the amplitude of action potentials in Golgi tendon organ afferents
c. the frequency of action potentials in muscle spindle fiber afferents
d. the frequency of action potentials in Golgi tendon organ afferents
e. the frequency of action potentials in upper motor neurons - CORRECT ANSWER -c. the
frequency of action potentials in muscle spindle fiber afferents
Which regions of the spinal cord receive sensory afferents from and send motor efferents to the
thoracic and pelvic limbs respectively?
a. C6-T2 and T3-L3
b. T3-L3 and L4-S3
c. C1-C5 and L4-S3
d. C6-T2 and L4-S3
