the fetal head and brain PRACTICE QUIZ
the structure located between the two loves of the cerebellum is the: a. cerebellar vermis b. cerebellar tonsils c. falx cerebri d. corpus callosum
a
which of the following would be the most likely fetal cranial findings with TORCH infections? a. intracranial calcifications b. cerebral atrophy c. proencephaly d. scaphocephaly
a
with what structure does the posterior fossa cyst associated with DWM communicate? a. fourth vent b.third vent c. cerebellar vermis d. cerebral aqueduct
a
The most accurate measurement for estimating ga is: a. bpd b. hc c. transcerebellar measurement d. lateral ventricle
b
the "sunburst" of the cerebral sulci is a sonographic finding of: a. DWM b. agenesis of the corpus callosum c. colpocephaly d. hydranencephaly
b
the band of tissue that allows communication between the right and the left cerebral hemispheres is the: a. falx cerebri b. corpus callosum c. cerebellar vermis d. csp
b
the lack of sulci within the fetal cerebrum is a reliable indicator of: a. agensis of the corpus callosum b. lissencephaly c. schizencephaly d. porencephaly
b
the sonographic finding of a fluid-filled cranium with absence of cerebral tissue is consistent with: a. hydrocephalus b. hydranencephaly c. holoprosencephaly d. schizencephaly
b
which of the following should not be included in the correct level for an HC measurement a. falx cerebri b. fourth ventricle c. thalamus d. CSP
b
which of the following would not be normally located within the midline of the fetal brain a. csp b. lobes of the thalamus c. third vent d. falx
b
enlargement of the frontal horns and narrowing of the occipital horns is termed: a. holoprosencephaly b. DWM c. colpocephaly d. apert syndrome
c
the condition in which the frontal horns are small and the occipital horns are enlarged is referred to as: a. ethmocephaly b. hydrocephalus c. colpocephaly d. encephalitis
c
the development of fluid-filled cleft within the cerebrum is consistent with: a. holoprosencephaly b. lissencephly c. schizencephaly d. hydranencephaly
c
the fourth ventricle is located: a. posterior to the csp b. between the frontal horns of the lateral ventricles c. anterior to the cerebellar vermis d. medial to the third
c
the third ventricle is located: a. anterior to the thalamus b. anterior to the cerebellar vermis c.between the two lobes of the thalamus d. superior to the corpus callosum
c
which of the following is located on both side of the midline? a. interhemispheric fissures b. third and fourth ventricles c. lateral ventricles d. third ventricle and cerebral aqueduct
c
following an intracranial hemorrhage, a cyst is noted within the cerebrum that communicates with the lateral ventricle. This is referred to as: a. schizencephaly b. lissencephaly c. holoprosencephaly d. porencephaly
d
the cisterna magna should not exceed ____ in the transcerebellar plane a. 4 mm b. 2 mm c. 8 mm d. 10 mm
d
the double fold of dura mater that divides the cerebral hemispheres is the: a. cerebellum b. CSP c. Corpus callosum d. falx cerebri
d
the most common cause of hydrocephalus in utero is a. cerebral hemorrhage b. holoprosencephaly c. brain tumors d. aqueductal stenosis
d
the third ventricle communicates with the fourth ventricle at the: a. foramen of magendie b. foramen of luschka c. foramen of monro d. aqueduct of sylvius
d
what cerebral abnormality are atypical facial features most commonly associated with a. DWM b. schizencephaly c. lissencephaly d. holoprosencephaly
d
what cerebral malformation is a result of agenesis or hypoplasia of the cerebellar vermis a. arnold-chiari II malformation b. schizencephaly c. mega cisterna magna d. DWM
d
which of the following will also typically be absent with agenesis of the corpus callosum? a. cerebellar vermis b. CSP c. third ventricle d. fourth ventricle
d
the most severe form of holoprosencephaly is: a. lobar b. alobar c. semilobar d. lobular
`b
the anechoic midline brain structure located between the frontal horns of the lateral ventricles is the: a. csp b. cavum vergae c. corpus callosum d. fourth ventricle
a
what chormosomal aberration is most often associated with holoprosencephaly? a. anopthalmia b. trisomy 21 c. trisomy 13 d. trisomy 18
c
the interthalamic adhesion (massa intermedia) passes through the: a. third ventricle b. fourth ventricle c. cisterna magna d. CSP
a
a cisterna magna that measures 15 mm and a normal appearing cerebellum is most likely: a. arnold-chiari II malformation b. schizencephaly c. mega cisterna magna d. DWM
c
a normal shaped skull is termed: a. dolichocephaly b. brachycephaly c. mesocephaly d. scaphocephaly
c
a strawberry shaped skull is commonly associated with: a. trisomy 21 b. trisomy 15 c. trisomy 18 d. trisomy 13
c
absence of the skull is: a. hydranencephaly b. schizencephaly c. acrania d. ventriculomegaly
c
which of the following is a genetic disorder that includes craniosynostosis, midline facial hypoplasia, and syndactyly? a. lobar holoprosencephaly b. beckwith-wiedemann syndrome c. arnold-chiari II malformation d. apert syndrome
d
all of the following are sonographic features of alobar holoprosencephaly except a. cyclopia b. monoventricle c. dorsal cyst d. fused thalamus
c
a clover-leaf shaped skull is related to: a. trisomy 18 b. meckel-gruber syndrome c. trisomy 13 d. thanatophoric dysplasia
d
all of the following are sonographic findings of Arnold-chiari II malformation except: a. enlarged massa intermedia b. hydrocephalus c. obliteration of the cisterna magna d. strawberry sign
d
the choroid plexus cyst could be associated with an increase risk of: a. trisomy 13 b. trisomy 4 c. arnold-chiari II malformation d. trisomy 18
d
dangling choroid sign is associated with: a. ventriculomegaly b. hydranencephaly c. lissencephaly d. meckel- gruber syndrome
a
a lemon-shaped skull is related to: a. trisomy 2 b. arnold-chiari II malformation c. thanatophoric dysplasia d. beckwith- weidemaann syndrome
b
what fetal suture is located within the frontal bone along the midline of the forehead a. squamosal suture b. sagittal suture c. lambdoidal suture d. metopic suture
d
