Question

which layer of the dermis houses a network of blood vessels?
reticular dermis
hypodermis
papillary dermis
epidermis

Explanation:

The dermis has two main layers: the papillary dermis and the reticular dermis. The papillary dermis is the upper layer of the dermis. It contains a network of small blood vessels (capillaries) that supply nutrients to the epidermis (the outermost layer of the skin) and help in thermoregulation. The reticular dermis is the thicker, lower layer of the dermis, mainly composed of dense irregular connective tissue. The hypodermis is not part of the dermis (it is the subcutaneous tissue beneath the dermis). The epidermis is the outermost layer of the skin and does not have blood vessels (nutrients diffuse from the underlying dermis).

Answer:

Papillary dermis