Sympathetic control of vessels in the hand and forearm skin.
D005542:Forearm; D006225:Hand; D006801:Humans; D012867:Skin / Q000098:blood supply*; D013564:Sympathetic Nervous System / Q000502:physiology*; D014666:Vasomotor System / Q000502:physiology*
SKIN/blood supply; SYMPATHETIC NERVOUS SYSTEM/physiology; VASOMOTOR SYSTEM/physiology