Across
- 5. Failure of forebrain to divide, resulting in a single ventricle and absent midline structures.
- 12. Anechoic midline box-shaped fluid space between the frontal horns.
- 13. Neural tube defect caused by incomplete closure of the spine.
- 14. Posterior fossa abnormality with enlarged cisterna magna and absent or hypoplastic vermis.
- 15. “Dumbbell-shaped” structure in posterior fossa responsible for coordination.
Down
- 1. CSF-filled space behind the cerebellum measuring 2–10 mm normally.
- 2. Back compartment of the skull containing cerebellum and cisterna magna.
- 3. Circumference of the fetal skull measured around the outer calvarium.
- 4. Paired CSF-filled cavities that contain the choroid plexus.
- 6. Curved band of white matter connecting the right and left hemispheres.
- 7. Absence of cranial bones with exposed, disorganized brain tissue.
- 8. Echogenic,lobulated structure inside ventricles that produces CSF.
- 9. Transverse measurement of the fetal head from outer to inner skull.
- 10. Bright midline dural fold that separates the two cerebral hemispheres.
- 11. Severe neural tube defect with absence of skull and cerebral hemispheres.