BIO 203 PURDUE EXAM 2 NEWEST 2025/2026 NEWEST
ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
which of the following tracts carries motor commands to skeletal
muscles important in maintaining posture? - ANSWER-
vestibulospinal
which of the following applies to the thalamus?
a. center that is important in homeostasis
b. center that is important in controlling the rate and depth of
breathing
c. major relay and processing station for information destined for
the cerebral cortex
d. major relay station for motor commands from the cerebral
cortex to spinal motor neurons - ANSWER-c. major relay and
processing station for information destined for the cerebral cortex
a 65-year-old retired pharmacist has developed a notable tremor
at rest, slowness of voluntary movements, stooped posture and a
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shuffling walk. What drug would alleviate most of these
symptoms? - ANSWER-L-DOPA
the movements of my left arm are done subconsciously but I have
to think out each movement of my right arm. this patient had a
lesion in the right - ANSWER-cerebrocerebellum
the sleep/wake cycle is governed by a "clock" in the - ANSWER-
superchiasmatic nucleus
lesions of all the following affect motor performance, EXCEPT
a.cerebellum
b. precentral gyrus
c. raphe nuclei
d. caudate nucleus - ANSWER-c. raphe nuclei
many drugs of abuse exert their effects on the brain's
pleasure/reward circuit. one of the components of this circuit is
the - ANSWER-nucleus accumbens