The posterior portion of the brain is composed of how Conus Medullaris
many hemispheres? - -2
Anomalies associated with an incomplete fusion of
This white matter in the brain allows for the neural tube during embryologic development -
communication between the right and left -Dysraphism
hemispheres of the brain - -Corpus Callosum
The space between the dura and the spinal colum -
Cerebelum - - -Epidural space
This fold of dura matter divides the 2 hemispheres of Fluid filled cavity in the spinal cord - -Syrinx
the brain - -Falx cerebri
Dilatation of the central canal of the spinal cord -
Paired structures responsible for relaying sensory -Hydromelia
information to the cerebral cortex - -Thalami
The spine is larger in the ___ and ___ regions due to
When CSF flow is obstructed in the ventricular the amount of nerves in these areas - -Cervical
system or in its outlets to the arachnoid space - Lumbar
-Non communicating hydrocephalus
Sono appearance of the long spine - -
The most common hypoxic-ischemic brain injury in Hypoechoic, tubular structure
the premature infant - -PVL Linear echogenic central canal
Bordered by 2 echogenic lines anteriorly and
posteriorly
When the band of white matter connecting the 2
hemispheres of the brain fails to develop normally -
-Agenesis of the corpus callosum Indications for a neonatal spinal US - -Hair tufts
Skin tags
Deep dimples
A tangled mass of abnormal arteries in the Vascular malformations
prosencephalic vein of Markowski - -Vein of
Galen Malformation
Failure of fusion of posterior vertebral bodies with
intact skin overlying the defect - -Closed Spinal
A collection of nerve roots at the end of the spinal Dysraphism
column which includes lower lumbar and sacral
nerve roots - -Cauda Equina
Congenital disorder in which part of the spinal cord is
split - -Diastomyelia
Outermost layer of the covering of the spinal cord -
-Dura
The femoral head begins to ossify from the center
outward at what age? - -2-8 months
The most caudal portion of the spinal cord - -
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, Neonatal Final Exam Test Questions and Answers Graded A+
Condition where the ball and socket joint of the hip
does not properly form in babies - - What are the classic findings of hydrocephalus? -
Developmental Dysplasia of the Hip (DDH) -Elevated intracranial pressure
Bulging fontanelle
Increased head size
Development dysplasia of the hip is more common in
- -Females 5:1
What is the most common intracranial vascular
anomaly in the neonatal period? - -Vein of
US is not performed in the first 3 weeks of life Galen Malformation
because of ligamentous laxity from - -Maternal
estrogen
When do most intraventricular bleeds occur? - -
First week of life
Preemies have an increased risk of DDH compared
to term babies - -False
When does complete agenesis of the corpus
callosum usually occur? - -Before 12 weeks
Test is performed by abducting and lifting the thigh to gestation
bring the femoral head into the acetabulum - -
Ortolani Test
A grade III IVH consists of intraventricular
hemorrhage with ventricular dilatation - -True
Test performed by adducting the hip with gentle
downward pressure - -Barlow Test
Intraventricular hemorrhage without ventricular
dilation is considered - -Grade II
Identify the risk factors associated with
intraventricular hemorrhage - -Prematurity
Traumatic birth Never extends anteriorly into the frontal horns -
Low birth weight -Choroid Plexus
Sonographically, PVL appears as - -Bilateral Most common hypoxic-ischemic brain injury in the
and increased echogenicity in the white matter premature infant - -PVL
affected
What condition occurs when cerebral spinal fluid is
Sonographically, what is the appearance of CMV? - blocked within the ventricular system? - -
-Echogenic intraparenchymal foci and Noncommunicating hydrocephalus
ventriculomegaly
What forms part of the lateral floor of the anterior
Lack of adequate oxygen - -Hypoxia horns of the lateral ventricle? - -Caudate
nucleus
Intraventricular hemorrhage starts in the - -
Caudothalamic Groove What is located above the caudate nucleus at the
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