The arrector pilli does not cause shivering - it's responsible for "goosebumps".. shivering is caused by skeletal-muscles..
The Arrector Pili muscle
Arrector pili is the muscle the raises hair. This is taught in health class.
arrector pili.
arrector pili
The arrector pili muscles makes the hairs on your arm stand on end.
Goosebumps are caused by little muscles called the arrectores pilorum (the hair erector muscles). Contraction of these muscles elevates the hair follicles above the rest of the skin. And it is these tiny elevations we perceive as goose bumps. Source: http://www.medicinenet.com/script/main/art.asp?articlekey=6842
arrector pili
The arrector pili muscles are in the hair follicles. When contracted, they cause the hair to stand on ends, commonly known as goosebumps.
arrector pili muscle
Arrector Pili Muscle
arrector pili muscle cell
Arrector pili muscle- Minute, involuntary muscle in the base of the hair follicle that causes "goose bumps".Hope this helps you