1|Page
USAHS CLINICAL NEUROSCIENCE EXAM 2
NEWEST 2025 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? - .....ANSWER ...✔✔ Neurulation, cell
proliferation, migration and aggregation, formation of
axonal and dendritic processes, and synaptogenesis
______________ involves the formation of the neural
crest and neural tube. - .....ANSWER ...✔✔
Neurulation
Cell proliferation occurs within the ________ _______. -
.....ANSWER ...✔✔ Neural tube
During the migration and aggregation phase of
embryological development the cells
migrate/aggregate within _________ locations. -
.....ANSWER ...✔✔ Definitive
,2|Page
True or false:
Cranial nerves are formed during the formation of
axonal and dendritic processes phase of embryological
development. - .....ANSWER ...✔✔ True
____________ occurs around day 14 of development. -
.....ANSWER ...✔✔ Neurulation
During __________ the embryo is in the process of
gastrolation. - .....ANSWER ...✔✔ Neurulation
The __________ is three cell layers thick and includes
the ectoderm, mesoderm, and endoderm. - .....ANSWER
...✔✔ Gastrula
The entire nervous system is derived from the
____________ ___________. - .....ANSWER ...✔✔
Embryonic ectoderm
On day _____ the notochord develops followed by the
neural tube on day _______. - .....ANSWER ...✔✔
21, 28
,3|Page
The _______ ________ develops into the the entire
CNS. - .....ANSWER ...✔✔ Neural tube
Neural crest cells develop into the ______. -
.....ANSWER ...✔✔ PNS
What two pathologies can occur during the first stage of
embryological development? - .....ANSWER ...✔✔
Spina bifida (failure of POSTERIOR neuropore to close)
and anencephaly (failure of the ANTERIOR neuropore to
close)
What does the prosencephalon divide into? -
.....ANSWER ...✔✔ telencephalon and diencephalon
What are the derivatives of the telencephalon and
diencephalon? - .....ANSWER ...✔✔ telencephalon:
rhinoencephalon (lateral ventricles)
diencephalon: thalamus, hypothalamus, optic nerves,
neurohypophysis, and pineal gland (third ventricle)
What is the derivative of the mesencephalon? -
.....ANSWER ...✔✔ Midbrain (cerebral aqueduct)
, 4|Page
What does the rhombencephalon divide into? -
.....ANSWER ...✔✔ metencephalon and
myelencephalon
What are the derivatives of the metencephalon and
myelencephalon? - .....ANSWER ...✔✔
Metencephalon: cerebellum and pons (fourth ventricle)
Myelencephalon: medulla (fourth ventricle)
What does the primitive neural tube divide into? -
.....ANSWER ...✔✔ Neural tube and neural crest
What are the derivatives of the neural tube and neural
crest? - .....ANSWER ...✔✔ Neural tube: spinal cord
(central canal)
Neural crest: peripheral nerve ganglia
The anterior commissure is _________ to the posterior
commissure. - .....ANSWER ...✔✔ Rostral
USAHS CLINICAL NEUROSCIENCE EXAM 2
NEWEST 2025 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? - .....ANSWER ...✔✔ Neurulation, cell
proliferation, migration and aggregation, formation of
axonal and dendritic processes, and synaptogenesis
______________ involves the formation of the neural
crest and neural tube. - .....ANSWER ...✔✔
Neurulation
Cell proliferation occurs within the ________ _______. -
.....ANSWER ...✔✔ Neural tube
During the migration and aggregation phase of
embryological development the cells
migrate/aggregate within _________ locations. -
.....ANSWER ...✔✔ Definitive
,2|Page
True or false:
Cranial nerves are formed during the formation of
axonal and dendritic processes phase of embryological
development. - .....ANSWER ...✔✔ True
____________ occurs around day 14 of development. -
.....ANSWER ...✔✔ Neurulation
During __________ the embryo is in the process of
gastrolation. - .....ANSWER ...✔✔ Neurulation
The __________ is three cell layers thick and includes
the ectoderm, mesoderm, and endoderm. - .....ANSWER
...✔✔ Gastrula
The entire nervous system is derived from the
____________ ___________. - .....ANSWER ...✔✔
Embryonic ectoderm
On day _____ the notochord develops followed by the
neural tube on day _______. - .....ANSWER ...✔✔
21, 28
,3|Page
The _______ ________ develops into the the entire
CNS. - .....ANSWER ...✔✔ Neural tube
Neural crest cells develop into the ______. -
.....ANSWER ...✔✔ PNS
What two pathologies can occur during the first stage of
embryological development? - .....ANSWER ...✔✔
Spina bifida (failure of POSTERIOR neuropore to close)
and anencephaly (failure of the ANTERIOR neuropore to
close)
What does the prosencephalon divide into? -
.....ANSWER ...✔✔ telencephalon and diencephalon
What are the derivatives of the telencephalon and
diencephalon? - .....ANSWER ...✔✔ telencephalon:
rhinoencephalon (lateral ventricles)
diencephalon: thalamus, hypothalamus, optic nerves,
neurohypophysis, and pineal gland (third ventricle)
What is the derivative of the mesencephalon? -
.....ANSWER ...✔✔ Midbrain (cerebral aqueduct)
, 4|Page
What does the rhombencephalon divide into? -
.....ANSWER ...✔✔ metencephalon and
myelencephalon
What are the derivatives of the metencephalon and
myelencephalon? - .....ANSWER ...✔✔
Metencephalon: cerebellum and pons (fourth ventricle)
Myelencephalon: medulla (fourth ventricle)
What does the primitive neural tube divide into? -
.....ANSWER ...✔✔ Neural tube and neural crest
What are the derivatives of the neural tube and neural
crest? - .....ANSWER ...✔✔ Neural tube: spinal cord
(central canal)
Neural crest: peripheral nerve ganglia
The anterior commissure is _________ to the posterior
commissure. - .....ANSWER ...✔✔ Rostral
