In which gland does vellus hair originate?

Vellus hair originates from the hair follicles, which are closely associated with different types of glands in the skin. The sebaceous gland, also known as an oil gland, is responsible for secreting sebum, which lubricates the hair and skin. While sebaceous glands do not directly produce hair, they play a vital role in the health and maintenance of hair follicles, including vellus hair.

Vellus hair itself is soft, fine, and typically unpigmented, and it covers much of the body's skin. It is distinct from other hair types, and its development is influenced by various factors, including hormonal levels and genetic predisposition. The association with the sebaceous gland indicates the influence of sebum in the growth and sustainability of vellus hair.

Other glands listed would not be correct in this context. Sweat glands play a role in thermoregulation and waste elimination but are not responsible for hair growth. Apocrine glands are mainly found in areas such as the armpits and groin, contributing to body odor but are not related to vellus hair specifically. The term "follicular gland" is not commonly used in the context of hair growth, which is primarily linked to sebaceous glands. Overall, the connection between sebaceous