What is the primary function of sudoriferous glands?

The primary function of sudoriferous glands, also known as sweat glands, is to regulate body temperature. These glands are responsible for producing sweat, which is primarily composed of water and salt. When the body's temperature rises—due to factors such as exercise or environmental heat—sweat is released onto the skin's surface. As the sweat evaporates, it cools the skin and helps lower the body temperature, maintaining homeostasis.

This regulatory function is crucial for overall health, as excessive heat can lead to heat-related illnesses. Other options, such as producing hormones, secreting oil, or filtering blood, do not pertain to the role of sudoriferous glands. Hormones are typically produced by endocrine glands, oil is secreted by sebaceous glands, and blood filtration is a function of organs like the kidneys. Therefore, the correct answer highlights the essential role of sweat glands in thermoregulation.