arrector pili muscle
The arrector pili muscles makes the hairs on your arm stand on end.
tiny muscle fibers attached to each hair follicle, which contract to make the hairs stand on end, causing goose bumps.
The root is part of hair embedded in the follicle in dermis. It has an attached smooth muscle which can contract causing the hair to stand up right. This causes the skin to form a slight bump which we call a 'goose bump'.
It causes erection of hair when stimulated by the sympathetic nervous system.
Piloerector Muscle
Piloerector Muscle
arrector pili.
The root of each hair follicle is connected to the small arrector pili muscles are small muscles attached to hair follicles in mammals. Each arrector pili muscle has a bundle of smooth muscle fibers which attach to the follicular units which have nerves.
Makes the hair follicle stand upright
Arrector Pili Muscle
Two things really. One is a sebaceous (oil) gland to lubricate the hair follicle. The second is a smooth muscle called the arrector pili which is what can make your hair stand on end when your cold or scared.
If you have goosebumps