The temperature of the testis is maintained at:

The process of sperm production, known as **spermatogenesis**, is highly sensitive to heat. In humans, the normal internal body core temperature is approximately $37^\circ\text{C}$ ($98.6^\circ\text{F}$), which is too high for the successful development and survival of sperm cells. To accommodate this, the testes are located outside the main body cavity within the **scrotum**. The scrotum acts as a thermoregulator, keeping the temperature of the testes about $2^\circ\text{C}$ to $2.5^\circ\text{C}$ lower than the internal body temperature. This cooler environment (roughly $34.5^\circ\text{C}$ to $35^\circ\text{C}$) is essential for the maturation and viability of sperm.