The integumentary structures that are derived from mesoderm and function in thermoregulation are
A) nails.
B) hair.
C) sebaceous glands.
D) arrector pili muscles.

Question

Quizplus · Accepted Answer

Arrector pili muscles, which are responsible for causing hairs to stand up ("goosebumps"), are derived from the mesoderm and play a role in thermoregulation by trapping a layer of air for insulation.

The Integumentary Structures That Are Derived from Mesoderm and Function