Richard Ramirez, the serial killer who terrorized Southern California in the 1980s as the Night Stalker, has died in prison while awaiting execution. Ramirez died of natural causes at Marin General Hospital. He was 53 years old. San Quentin State Prison spokesman Lt. Sam Robinson confirmed Ramirez's death Friday.
The somatic nervous system (SoNS or voluntary nervous system) is the part of the peripheral nervous system associated with skeletal muscle voluntary control of body movements. The SoNS consists of afferent nerves and efferent nerves.
The Autonomic Nervous System. The autonomic system is the part of the peripheral nervous system responsible for regulating involuntary body functions, such as blood flow, heartbeat, digestion, and breathing. In other words, it is the autonomic system that control aspects of the body that are usually not under voluntary control.