The<unk>  <unk>  represents the largest part of the nervous<unk> , including the brain and the spinal cord. Together with the peripheral nervous<unk> , it has a fundamental role in the control of behavior. The<unk>  is contained within the dorsal cavity, with the brain within the cranial subcavity, and the spinal cord in the spinal cavity. The<unk>  is covered by the meninges. The brain is also protected by the skull, and the spinal cord is also protected by the vertebrae.
Central nervous system
Enteric nervous system
Musculoskeletal system
Nervous tissue
Urinary system
Brain
Heart
Airway