Physiology The placenta secretes a hormone that is utilized in the early detection of pregnancy. This hormone is: A Endothelial growth factor (EGF) B Human chorionic gonadotropin (hCG) C Human chorionic somatotropin (HCS) D Relaxin 💡 Explanation The placenta secretes a hormone that is utilized in the early detection of pregnancy. This hormone is: ✓ Correct Answer: B. Human chorionic gonadotropin (hCG)