PNS (peripheral nervous system) Purpose The (PNS) is the division of the nervous system containing all the nerves that lie outside of the central nervous system (CNS) that connect the CNS to the organs, limbs, and skin. Function The peripheral nervous system consists of nerve cells out of the brain and spinal cord. The PNS follow the commands of CNS. They transmit information from and to the CNS from the body parts. CNS (central nervous system) The CNS is made up of the brain and spinal cord. The brain plays a central role in the control of most bodily functions, including awareness, movements, sensations, thoughts, speech, and memory. Reflex movements can occur via spinal cord pathways without the participation of brain structures. The central nervous system is mad up of the brain and spinal cord. The brain controls everything and all functions of the body. The spinal cord connects the brain to all the nerves in our body. It is responsible for the reflex actions and sends impulses from the brain to nerves in the body. Structure The peripheral nervous system is composed of somatic and autonomous nervous systems. The central nervous system is made up of the brain and spinal cord. Reference: Lake JI, Heuckeroth RO. Enteric nervous system development: migration, differentiation, and disease. Am J Physiol Gastrointest Liver Physiol. 2013 Jul 01;305(1):G1-24. Siéssere S, Vitti M, Sousa LG, Semprini M, Iyomasa MM, Regalo SC. Anatomic variation of cranial parasympathetic ganglia. Braz Oral Res. 2008 Apr-Jun;22(2):101-5.