The contraction or relaxation of the erector pili muscle determines the orientation of hair on the skin. When it contracts, due to fear or cold, hair stands upright.
This is a tiny muscle that attaches to the base of a hair follicle mammals at one end and to dermal tissue on the other end.
arrector pili
arrector pili.
arrector pili
The Arrector Pili muscle
The arrector pili muscles makes the hairs on your arm stand on end.
Arrector pili is the muscle the raises hair. This is taught in health class.
arrector pili muscle
Arrector Pili Muscle
arrector pili muscle cell
The arrector pili and epidermis are related only in that the action of the arrector pili causes "goosebumps" to form at the epidermis.
it is located underneath the sebacecus gland :)
Those are known as arrector pili muscles. They are responsible for contracting and causing hairs to stand up in response to cold or emotional stimuli.