Which layer of the skin contains blood vessels and nerves?

The dermis is the layer of the skin that contains blood vessels and nerves. It is situated beneath the epidermis and comprises a thick layer of connective tissue that houses a rich supply of vascular and neural structures. The blood vessels within the dermis play a crucial role in regulating body temperature and providing nutrients to the skin. Additionally, the nerves in this layer are responsible for the sensory functions of the skin, including the perception of touch, pain, and temperature.

The epidermis, which is the outermost layer of the skin, primarily serves as a protective barrier and does not contain blood vessels or nerves. The subcutaneous layer, located below the dermis, is made up of fat and connective tissue, which also does not contain the blood vessels and nerves that are found in the dermis. The stratum corneum, being the most superficial layer of the epidermis, contains dead skin cells but lacks vascular and neural structures. Thus, the dermis is essential for its role in housing these important components, making it the correct answer.