90% of Brain growth is achieved by the ___________: (A) 2nd year, (B) 3rd year, (C) 5th year, (D) 15th year
Answer is B. Total brain volume at age 1 mo is approximately 36% of adult volume but by age 1 yr is approximately 72% (83% by 2 y).90% by 3 years of age. Ref.nelson 20th edition pg 65