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Boards > First Aid Neuro > Flashcards

First Aid Neuro Flashcards

1
Q

notochord transforms ectoderm into

A

neuroectoderm

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2
Q

neuroectoderm becomes

A

neural plate

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3
Q

neural plate becomes

A

neural tube

neural crest cells (PNS neurons, Schwann cells)

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4
Q

notochord becomes

A

nucleus pulposus

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5
Q

mesoderm becomes

A

microglia

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6
Q

alar plate (dorsal)

A

sensory

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7
Q

basal plate (ventral)

A

motor

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8
Q

forebrain splits into

A

telencephalon

diencephalon

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9
Q

telencephalon becomes

A

wall: cerebral hemispheres
cavities: lateral ventricles

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10
Q

diencephalon becomes

A

wall: thalamus
cavities: third ventricle

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11
Q

midbrain becomes

A

mesencephalon

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12
Q

mesencephalon becomes

A

wall: midbrain
cavities: aqueduct

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13
Q

hindbrain splits into

A

metencephalon

myelencephalon

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14
Q

metencephalon becomes

A

wall: pons & cerebellum
cavities: upper part of 4th ventricle

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15
Q

myelencephalon becomes

A

wall: medulla
cavities: lower part of 4th ventricle

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16
Q

neural tube defects

A

persistent connection between amniotic cavity & spinal canal
incr. alpha-fetoprotein (AFP), incr acetylcholinesterase (AChE)
assoc with low folic acid

17
Q

Spina bifida occulta

A

failure of bony spinal canal to close (no structural herniation)
intact dura
normal AFP

18
Q

Meningocele

A

meninges (but no neural tissue) herniates through bony defect

19
Q

Meningomyelocele

A

meninges & neural tissue herniate through bony defect

20
Q

anencephaly

A

malformation of anterior neural tube (no forebrain)

21
Q

holoprosencephaly

A

failure of L + R hemispheres to separate
moderate form has cleft lip/palate,
severe form has cyclopia
seen in Patau syndrome and fetal alcohol syndrome

22
Q

chiari II

A

significant herniation of cerebellar tonsils and vermis through foramen magnum
assoc with aqueductal stenosis and lumbosacral meningiomyelocele

23
Q

Dandy-Walker

A

agenesis of cerebellar vermis with cystic enlargement of 4th ventricle
assoc with hydrocephalu, spina bifida

24
Q

Syringomyelia

A 
cystic cavity (syrinx) within spinal cord
bilateral loss of pain + temp in upper extremities

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