USAHS CLINICAL NEUROSCIENCE EXAM 1
NEWEST 2024 ACTUAL EXAM COMPLETE
ACCURATE QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
What are the 5 steps of neurological development in order? - ANSWERNeurulation, cell
proliferation, migration and aggregation, formation of axonal and dendritic processes,
and synaptogenesis
______________ involves the formation of the neural crest and neural tube. -
ANSWERNeurulation
Cell proliferation occurs within the ________ _______. - ANSWERNeural tube
During the migration and aggregation phase of embryological development the cells
migrate/aggregate within _________ locations. - ANSWERDefinitive
True or false:
Cranial nerves are formed during the formation of axonal and dendritic processes phase
of embryological development. - ANSWERTrue
____________ occurs around day 14 of development. - ANSWERNeurulation
During __________ the embryo is in the process of gastrolation. - ANSWERNeurulation
The __________ is three cell layers thick and includes the ectoderm, mesoderm, and
endoderm. - ANSWERGastrula
The entire nervous system is derived from the ____________ ___________. -
ANSWEREmbryonic ectoderm
,On day _____ the notochord develops followed by the neural tube on day _______. -
ANSWER21, 28
The _______ ________ develops into the the entire CNS. - ANSWERNeural tube
Neural crest cells develop into the ______. - ANSWERPNS
What two pathologies can occur during the first stage of embryological development? -
ANSWERSpina bifida (failure of POSTERIOR neuropore to close) and anencephaly
(failure of the ANTERIOR neuropore to close)
What does the prosencephalon divide into? - ANSWERtelencephalon and diencephalon
What are the derivatives of the telencephalon and diencephalon? -
ANSWERtelencephalon: rhinoencephalon (lateral ventricles)
diencephalon: thalamus, hypothalamus, optic nerves, neurohypophysis, and pineal
gland (third ventricle)
What is the derivative of the mesencephalon? - ANSWERMidbrain (cerebral aqueduct)
What does the rhombencephalon divide into? - ANSWERmetencephalon and
myelencephalon
What are the derivatives of the metencephalon and myelencephalon? -
ANSWERMetencephalon: cerebellum and pons (fourth ventricle)
Myelencephalon: medulla (fourth ventricle)
What does the primitive neural tube divide into? - ANSWERNeural tube and neural crest
What are the derivatives of the neural tube and neural crest? - ANSWERNeural tube:
spinal cord (central canal)
Neural crest: peripheral nerve ganglia
The anterior commissure is _________ to the posterior commissure. - ANSWERRostral
The thalamus is ________to the frontal lobe. - ANSWERCaudal
The cerebellum is _________ to the pons. - ANSWERDorsal
The anterior horn of the SC is _________ to the posterior horn of the SC. -
ANSWERVentral
, During the __________ ___________ phase of embryological development the sulcus
limitans pushes bilaterally inside of the neural tube and starts to divide the tube into a
ventral and dorsal portion. - ANSWERCell proliferation (ventral portion= baslar plate;
efferent motor and the dorsal portion= alar plate; sensory)
During the cell proliferation phase the innermost layer (ependyaml aka germinal)
creates the lining of the __________. - ANSWERVentricles (helps the cilia)
During the cell proliferation phase the intermediate layer becomes the ___________. -
ANSWERMantle (gray matter)
During the cell proliferation phase the marginal layer becomes ________ ________. -
ANSWERWhite matter
During _________ migration the cells travel up the telencephalon from the SC. -
ANSWERRadial
During ______________ migration the cells travel within the brain stem. This occurs
late in the migration process. - ANSWERTangential
What two defects can occur in the migration phase of embryological development? -
ANSWERDyslexia and lissencephaly (smooth brain = low IQ)
During the differentiation phase of embryological development at 14 weeks CN's
_______, _______, ______, ______, and _____ form. - ANSWER5, 7, 9, 10, and 12
(swallow/gag)
During the differentiation phase of embryological development at 25 weeks CN's
________ _______ ______ and _____ form. - ANSWER2, 3, 4, and 6 (visual motor)
During the differentiation phase of embryological development at 28 weeks CN ______
forms. - ANSWER8 (hearing)
During the differentiation phase of embryological development at 31-32 weeks CN
______ forms. - ANSWER1 (smell)
During the synaptogenesis phase of embryological development the basis of
____________ ___________ is formed. - ANSWERNeural plasticity (correlated with
known types of permanent learning)
The telencephalon and diencephalon comprise the _____________. -
ANSWERForebrain
What makes up the brain stem? - ANSWERmidbrain, pons, medulla oblongata (vital
survival function)
NEWEST 2024 ACTUAL EXAM COMPLETE
ACCURATE QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY
GRADED A+
What are the 5 steps of neurological development in order? - ANSWERNeurulation, cell
proliferation, migration and aggregation, formation of axonal and dendritic processes,
and synaptogenesis
______________ involves the formation of the neural crest and neural tube. -
ANSWERNeurulation
Cell proliferation occurs within the ________ _______. - ANSWERNeural tube
During the migration and aggregation phase of embryological development the cells
migrate/aggregate within _________ locations. - ANSWERDefinitive
True or false:
Cranial nerves are formed during the formation of axonal and dendritic processes phase
of embryological development. - ANSWERTrue
____________ occurs around day 14 of development. - ANSWERNeurulation
During __________ the embryo is in the process of gastrolation. - ANSWERNeurulation
The __________ is three cell layers thick and includes the ectoderm, mesoderm, and
endoderm. - ANSWERGastrula
The entire nervous system is derived from the ____________ ___________. -
ANSWEREmbryonic ectoderm
,On day _____ the notochord develops followed by the neural tube on day _______. -
ANSWER21, 28
The _______ ________ develops into the the entire CNS. - ANSWERNeural tube
Neural crest cells develop into the ______. - ANSWERPNS
What two pathologies can occur during the first stage of embryological development? -
ANSWERSpina bifida (failure of POSTERIOR neuropore to close) and anencephaly
(failure of the ANTERIOR neuropore to close)
What does the prosencephalon divide into? - ANSWERtelencephalon and diencephalon
What are the derivatives of the telencephalon and diencephalon? -
ANSWERtelencephalon: rhinoencephalon (lateral ventricles)
diencephalon: thalamus, hypothalamus, optic nerves, neurohypophysis, and pineal
gland (third ventricle)
What is the derivative of the mesencephalon? - ANSWERMidbrain (cerebral aqueduct)
What does the rhombencephalon divide into? - ANSWERmetencephalon and
myelencephalon
What are the derivatives of the metencephalon and myelencephalon? -
ANSWERMetencephalon: cerebellum and pons (fourth ventricle)
Myelencephalon: medulla (fourth ventricle)
What does the primitive neural tube divide into? - ANSWERNeural tube and neural crest
What are the derivatives of the neural tube and neural crest? - ANSWERNeural tube:
spinal cord (central canal)
Neural crest: peripheral nerve ganglia
The anterior commissure is _________ to the posterior commissure. - ANSWERRostral
The thalamus is ________to the frontal lobe. - ANSWERCaudal
The cerebellum is _________ to the pons. - ANSWERDorsal
The anterior horn of the SC is _________ to the posterior horn of the SC. -
ANSWERVentral
, During the __________ ___________ phase of embryological development the sulcus
limitans pushes bilaterally inside of the neural tube and starts to divide the tube into a
ventral and dorsal portion. - ANSWERCell proliferation (ventral portion= baslar plate;
efferent motor and the dorsal portion= alar plate; sensory)
During the cell proliferation phase the innermost layer (ependyaml aka germinal)
creates the lining of the __________. - ANSWERVentricles (helps the cilia)
During the cell proliferation phase the intermediate layer becomes the ___________. -
ANSWERMantle (gray matter)
During the cell proliferation phase the marginal layer becomes ________ ________. -
ANSWERWhite matter
During _________ migration the cells travel up the telencephalon from the SC. -
ANSWERRadial
During ______________ migration the cells travel within the brain stem. This occurs
late in the migration process. - ANSWERTangential
What two defects can occur in the migration phase of embryological development? -
ANSWERDyslexia and lissencephaly (smooth brain = low IQ)
During the differentiation phase of embryological development at 14 weeks CN's
_______, _______, ______, ______, and _____ form. - ANSWER5, 7, 9, 10, and 12
(swallow/gag)
During the differentiation phase of embryological development at 25 weeks CN's
________ _______ ______ and _____ form. - ANSWER2, 3, 4, and 6 (visual motor)
During the differentiation phase of embryological development at 28 weeks CN ______
forms. - ANSWER8 (hearing)
During the differentiation phase of embryological development at 31-32 weeks CN
______ forms. - ANSWER1 (smell)
During the synaptogenesis phase of embryological development the basis of
____________ ___________ is formed. - ANSWERNeural plasticity (correlated with
known types of permanent learning)
The telencephalon and diencephalon comprise the _____________. -
ANSWERForebrain
What makes up the brain stem? - ANSWERmidbrain, pons, medulla oblongata (vital
survival function)
