The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system.
What are the 2 divisions of the peripheral nervous system and what are their functions?
Like the nervous system as a whole, the peripheral nervous system also has two divisions: the sensory division and the motor division. The sensory division of the PNS carries sensory information from the body to the central nervous system.
What are the 2 functions of the PNS?
The PNS has three basic functions: (1) conveying motor commands to all voluntary striated muscles in the body; (2) carrying sensory information about the external world and the body to the brain and spinal cord (except visual information: the optic nerves, which convey information from the retina to the brain, are in …
What are the four parts of the peripheral nervous system?
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.
What are the types of peripheral nervous system?
There are three types of peripheral nerves: motor, sensory and autonomic. Some neuropathies affect all three types of nerves, while others involve only one or two. 3 Types of Peripheral Nerves: Motor.
What are the three parts of the peripheral nervous system?
The peripheral nervous system is divided into the somatic nervous system, and the autonomic nervous system.
What is difference between CNS and PNS?
The CNS consists of the brain and spinal cord, while the PNS includes all other nervous system tissue. All sensory receptors, sensory neurons and motor neurons are part of the PNS. The bones of the skull and spinal vertebrae encase all CNS neurons. … Groups of neurons form in both the CNS and the PNS.
Which of the following is the best example of the function of the peripheral nervous system?
The best example of the peripheral nervous system is that it connects the central nervous system to the rest of the body. Explanation: The ‘peripheral nervous system’ connects the ‘central nervous system’ to the various organs of the human body and to the limbs and skin.
What protects the peripheral nervous system?
Unlike the CNS, which is protected by bones, meninges, and cerebrospinal fluid, the PNS has no such protections. The PNS also has no blood-brain barrier to protect it from toxins and pathogens in the blood. Therefore, the PNS is more subject to injury and disease than is the CNS.