The Contraction of the Piloerector Muscles (Pilomotor Muscle or Arrector

Multiple Choice

The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes __________.

A) hairs to stand on end,trapping an insulating layer of warm air next to the skin
B) generation of heat to raise the body temperature
C) hairs to stand on end to make the individual appear bigger
D) hairs to stand on end with no apparent function
E) increased ability to feel pain