USAHS CLINICAL NEUROSCIENCE
CLO 1 PART 1-4 EXAM QUESTIONS
WITH CORRECT ANSWERS
____________ 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 (Day 14)
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 the entire CNS. - ANSWER -Neural tube
Neuroectoderm - ANSWER -portion of the ectoderm that becomes the nervous system
Neural crest cells develop into the ______. - ANSWER -PNS
Ventricular system - ANSWER -a system of fluid-filled cavities inside the brain
Cavity within neural tube
What two pathologies can occur during the first stage of embryological development? -
ANSWER -• Spina bifida (failure of POSTERIOR neuropore to close)
• Anencephaly (failure of the ANTERIOR neuropore to close)
STAGE 1: Embryological Development - ANSWER -Neurulation
Nerves (PNS) - ANSWER --fibers of sensory and motor neurons (somatic/autonomic)
Anencephaly - ANSWER -defect in closure of the cephalic portion of the neural tube
that results in incomplete development of the brain and bones of the skull; the most
drastic neural tube defect usually results in a stillbirth
What are the 5 steps of neurological development in order? - ANSWER -• Neurulation
• Cell proliferation
• Migration and aggregation
, • Formation of axonal and dendritic processes
• 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
4th stage in embryological development - ANSWER -• Formation of axonal and dendritic
processes
• Development of CN
True or false:
Cranial nerves are formed during the formation of axonal and dendritic processes phase
of embryological development. - ANSWER -True
4 divisions of Embryological development - ANSWER -• Prosencephalon(forebrain)
• Mesencephalon (midbrain)
• Rhombencephalon (hindbrain)
• Primitive Neural Tube (Spinal Cord)
Prosencephalon(forebrain): Subdivision - ANSWER -• Telencephalon
• Diencephalon
Prosencephalon(forebrain): Derivatives - ANSWER -Telencephalon:
• Rhinencephalon
Diencephalon:
• Thalamus
• Hypothalamus
• Optic Nerves
• Neurohypophysis
• Pineal Gland
Prosencephalon(forebrain): Cavities - ANSWER -Rhinencephalon:
• Lateral Ventricles
Diencephalon:
• Third Ventricle
Mesencephalon (midbrain): Subdivision - ANSWER -Mesencephalon
Mesencephalon (midbrain): Derivatives - ANSWER -Midbrain
CLO 1 PART 1-4 EXAM QUESTIONS
WITH CORRECT ANSWERS
____________ 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 (Day 14)
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 the entire CNS. - ANSWER -Neural tube
Neuroectoderm - ANSWER -portion of the ectoderm that becomes the nervous system
Neural crest cells develop into the ______. - ANSWER -PNS
Ventricular system - ANSWER -a system of fluid-filled cavities inside the brain
Cavity within neural tube
What two pathologies can occur during the first stage of embryological development? -
ANSWER -• Spina bifida (failure of POSTERIOR neuropore to close)
• Anencephaly (failure of the ANTERIOR neuropore to close)
STAGE 1: Embryological Development - ANSWER -Neurulation
Nerves (PNS) - ANSWER --fibers of sensory and motor neurons (somatic/autonomic)
Anencephaly - ANSWER -defect in closure of the cephalic portion of the neural tube
that results in incomplete development of the brain and bones of the skull; the most
drastic neural tube defect usually results in a stillbirth
What are the 5 steps of neurological development in order? - ANSWER -• Neurulation
• Cell proliferation
• Migration and aggregation
, • Formation of axonal and dendritic processes
• 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
4th stage in embryological development - ANSWER -• Formation of axonal and dendritic
processes
• Development of CN
True or false:
Cranial nerves are formed during the formation of axonal and dendritic processes phase
of embryological development. - ANSWER -True
4 divisions of Embryological development - ANSWER -• Prosencephalon(forebrain)
• Mesencephalon (midbrain)
• Rhombencephalon (hindbrain)
• Primitive Neural Tube (Spinal Cord)
Prosencephalon(forebrain): Subdivision - ANSWER -• Telencephalon
• Diencephalon
Prosencephalon(forebrain): Derivatives - ANSWER -Telencephalon:
• Rhinencephalon
Diencephalon:
• Thalamus
• Hypothalamus
• Optic Nerves
• Neurohypophysis
• Pineal Gland
Prosencephalon(forebrain): Cavities - ANSWER -Rhinencephalon:
• Lateral Ventricles
Diencephalon:
• Third Ventricle
Mesencephalon (midbrain): Subdivision - ANSWER -Mesencephalon
Mesencephalon (midbrain): Derivatives - ANSWER -Midbrain
