The answer is; smooth muscle
muscles are known to contract and relax. This action of the Arrector pili muscles (muscles attached to the hair follicles of the skin) either cause the hair to stand or lie on the skin. When they contract, the hair stands,and when the muscles relax, the hair lies on the skin. The muscles are served by the autonomic nervous system (hence involuntarily contract and relax).
Answer;
-Smooth muscle
The kind of muscle that raises the hairs on the arm is smooth muscle
Explanation;
-Smooth muscle generally forms the supporting tissue of blood vessels and hollow internal organs, such as the stomach, intestine, and bladder.
-They have a number of functions for example; the smooth muscle in the uterus helps a woman to push out her baby. In the bladder, smooth muscle helps to push out urine. Smooth muscle determines the flow of blood in the arteries. Smooth muscles move food through the digestive tract. etc.
