All of the following statements about Diploic veins are true, except?: (A) Develop around 8th week of gestation, (B) These have no valves (valveless), (C) Present in cranial bones, (D) Have a thin wall lined by a single layer of endothelium
Answer is A. Diploic veins develop after bih and are not visible before 3 years of life. They fully develop only by 15 years of age.