Answers| 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
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 gastrulation. - 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
The develops into 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: rhinencephalon (lateral ventricles)
diencephalon: thalamus, hypothalamus, optic nerves, neurohypophysis, and
pineal gland (third ventricle)
, What is the derivative of the mesencephalon? - ANSWER: Midbrain (cerebral
aqueduct)
What does the rhombencephalon divide into? - ANSWER: metencephalon and
myelencephalon