Potential Teratogen-induced Malformation

Question 1

Week 3

Answer 1

1. Ectomelia- congenital absence of one or more limbs

2. Ectopic cordis- heart lies outside the thoracic cavity

Question 2

Week 4

Answer 2

1. Omphalocele- herniation of abdominal viscera into the umbilical cord
2. Tracheoesophalgeal fistula- abnormal connection between trachea and esophagus

Question 3

Weeks 4-5

Answer 3

Hemivertebra

Question 4

Week 5

Answer 4

1. Nuclear cataract
2. Microphthalmia- abnormally small eyeballs 5-6
3. Facial clefts
4. Carpal or pedal ablation 5-6

Question 5

Week 6

Answer 5

1. Gross septal or aortic abnormalities
2. Cleft lip
3. Agnathia- absence of lower jaw

Question 6

Week 7

Answer 6

1. Interventricular- septal defects
2. Pulmonary stenosis
3. Cleft palate,
4. Micrognathhia- smallness of the jaw
5. Epicanthus
6. Brachycephalism- shortness of the head 7-8
7. Mixed sexual characteristics

Question 7

Week 8

Answer 7

1. Persistent ostium primum- persistent opening in the atrial septum
2. Digital stunting- shortening of the fingers and toes