The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions.
The three d's for group-living primates are detection, deterrence, and dilution. The primates are being preyed upon. Because of this, they developed defenses in order to protect themselves. The three d's of group-living primates are used in order to protect themselves to potential threat.
