This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Testes completely descend into the scrotum by the age of: 
Select and explain. 
A. End of 7th month of intrauterine life, B. End of 8th month of intrauterine life, C. End of 9th month of intrauterine life, D. After bih
C: End of 9th month of intrauterine life
Answer: C: End of 9th month of intrauterine life 
Explanation: Testes begin to descend from abdomen to scrotum between 28 to 30 weeks of gestation. By term, 95% of testes in infants are in the scrotum. Descent of testes from the abdomen into the scrotum is an androgen dependent process during which the testes are pulled downward by a fibrous cord anchored to the developing scrotum called gubernaculum.The testes sit just above the inguinal ring until the last 3 months of pregnancy, at which time they complete their descent through the inguinal canal into the scrotum.Testicular descent requires fetal gonadotropins. Disruption in the fetal hypothalamic testicular axis result in cryptorchidism.