Dermal papillae are vital for which of the following functions?

Dermal papillae play a crucial role in providing blood and nerve supply to the hair follicles and surrounding tissues. These small, nipple-like projections located in the dermal layer of the skin contain numerous capillaries and sensory nerve endings. The rich blood supply delivered by these capillaries not only nourishes the hair follicles but also delivers essential nutrients and oxygen while removing waste products. Additionally, the nerve endings in the dermal papillae contribute to the sensory perception of touch and temperature, enhancing the overall function of the skin and hair follicles.

While dermal papillae are important for other functions like forming hair follicles and facilitating hair growth, their primary contribution is to the blood and nerve supply, making them vital for maintaining the health and function of hair and skin.