USAHS NEUROSCIENCE EXAM 2 NEWEST
2024 ACTUAL EXAM COMPLETE 150 EXAM
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
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The fasciculus gracilis carries sensory information from the
__________ extremities. - ANSWER- Lower
The fasciculus cuneatus carries sensory information from the
___________ extremities. - ANSWER- Upper
The _______________ pathway predominantly provides our
protective sensations and pain. - ANSWER- Anterolateral
The dorsal and ventral spinocerebellar tracts send information
from the __________ to the ______________. - ANSWER-
Spine, cerebellum
The posterior column medial leminiscus, anterolateral system
(spinothalamic, spinoreticular, spinomesencephalic), ventral and
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rostral cerebellar, dorsal spinocerebellar, and cuneocerebellar
are all ________________ tracts. - ANSWER- Ascending
What makes up the anterolateral system? - ANSWER-
Spinothalamic, spinoreticular, and spinomesencephalic tracts
The _______ is responsible for sensory (vibration, joint position,
and fine touch). - ANSWER- PCML
Where does the PCML cross over? - ANSWER- Internal arcuate
fibers (lower medulla)
The anterolateral pathway is responsible for ________,
________________, and _________ ________. - ANSWER-
Pain, temperature, crude touch
Where does the anterolateral pathway cross over? - ANSWER-
Anterior commissure in the spinal cord
What is the difference between the spinothalamic, reticular, and
spinomesenteric tracts? - ANSWER- Spinothalamic: ex. feeling
that you stepped on something sharp
Meissner's corpuscle vs Merkel's? - ANSWER- Meissners: light
touch
Merkerls: two point discrimination
Pacinian corpuscles and ruffini endings deal with __________
and ________ ________. - ANSWER- Vibration and deep touch
True or false:
Bare nerve endings are nociceptors. - ANSWER- True (pain,
temp, itch)
As information travels up through the spinal cord through the
brain stem it eventually is "filtered" through the ___________ to
go to it's specific areas within the brain. - ANSWER- Thalamus
What are the four major functions of the thalamus? - ANSWER-
1. Integration and relay of sensory information
2. Integration and relay of motor control information from the
cerebellum and basal ganglia to the motor cortex
3. Gating the passage of sensory and motor information
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