Atypical development

Question 1

Critical period

Answer 1

Period in which certain development happens optimally. Not impossible after but a lot more difficult. Systems are vulnerable for lesions in this period.

Question 2

Major morphological abnormalities

Answer 2

during construction of organs, weeks 2 - 8.

Question 3

neural tube defectys

Answer 3

Folic acid use decreases chance

Question 4

Risk factors

Answer 4

Age of parents

Nutrition, drugs, alcohol and smoking

Stress

Mental disorder/medication

Infections

Question 5

Down syndrome

Answer 5

Chromosomal anomalies. Trisomy 21, mental retardation and usually heart defects. Age of mother very important (after 40 large increase)

Question 6

Achondroplasia (dwarfism)

Answer 6

Fathers age matters for this, risk increases with age. Mutation in sperm cells (not only explanation)