48 workbook 1

Question 1

congenital defect of the abdominal wall with protrusion of the abdominal contents into the base of the umbilical cord, the cord appears to enter the mass

Answer 1

omphalocele

Question 2

protrusion of the brain from the cranial cavity

Answer 2

cephalocele

Question 3

congenital absence of the brain and cranial vault with the cerebral hemispheres missing or reduced to small masses

Answer 3

anencephaly

Question 4

a nonlethal genetic abnomality in which chromasomal makeup is 45 XO instead of the normal 46 XX or XY

Answer 4

turner’s syndrome

Question 5

congenital defective opening in the wall of the abdomen just to the right of the umbilical cord, bowel and other organs may protrude outside of the abdomen from this opening

Answer 5

gastroschisis

Question 6

during the first trimester the bowel normally heriates outside the abdominal cavity between 8-12 weeks

Answer 6

bowel herniation

Question 7

a rare neural tube defect in which brain tissue protrudes through a fissure in the occiput so that the brain and spinal cord occupy a single cavity

Answer 7

iniencephaly

Question 8

dilation of the cerebral ventricles without enlargement of the cranium

Answer 8

ventriculomegaly

Question 9

partial or complete absence of cranium

Answer 9

acrania

Question 10

fluid filled structure initially surrounding the neck may extend upward to the head or laterally to the body

Answer 10

cystic hygroma

Question 11

failure of forebrain to divide into cerebral hemisphere, which results in a single large ventricle with varying amounts of cerebral cortex that has been known to occur with trisomies 13 to 15 and trisomy 18

Answer 11

holoprosencephaly