This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
Spermatogenesis occurs at 
Select and explain. 
A. Body temperature, B. Temperature lower than core body temperature, C. Temperature higher than core body temperature, D. Temperature does not play a role
B: Temperature lower than core body temperature
Answer: B: Temperature lower than core body temperature 
Explanation: Spermatogenesis is the process in which spermatozoa are produced from spermatogonial stem cells by way of mitosis and meiosis. The location is specifically impoant as the process of spermatogenesis requires a lower temperature to produce ble sperm, specifically 1deg-8 degC lower than normal body temperature of 37 degC (98.6 degF).Ref: Ganong&;s review of medical physiology; 24th edition; page no:-420