Question

what part of the skin contains blood vessels that help regulate body temperature?

1. dermis
2. epidermis
3. stratum spinosum
4. stratum corneum

Explanation:

The dermis is the layer of skin with blood vessels. These vessels dilate/constrict to regulate body temperature (e.g., dilate to cool, constrict to retain heat). The epidermis (and its sub - layers like stratum spinosum, stratum corneum) has no blood vessels.

Answer:

1. Dermis