Skip to main content
CSTSetup
Dictionary

peripheral nervous system

All the nerves outside the brain and spinal cord, which link them to the rest of the body.

puh-RIF-er-ul NER-vus SIS-tum noun

What it means

The nerves that run between the central nervous systemSEN-trul NER-vus SIS-tumThe brain and the spinal cord together.centr/o center-al having to do withFull entry (brain and spinal cord) and the skin, muscles and organs. It includes 12 pairs of cranial nerves and 31 pairs of spinal nerves. Its somatic part carries feeling from the body and controls the muscles we move on purpose; its autonomic part runs the organs without our thinking about it. Damage to these nerves is peripheral neuropathy, which often causes numbness, tingling or pain in the feet and hands.

For the nurse

Check feeling, strength and movement in the hands and feet, especially in clients with diabetes. Teach clients with numb feet to look at their feet every day and test bath water with a thermometer or elbow.

At a glance

AbbreviationsPNS
Spanishsistema nervioso periférico
Also writtenPNS, peripheral nervous systems

Related terms

central nervous system

The brain and the spinal cord together.

spinal cord

The long bundle of nerves that runs down through the backbone and carries messages between the brain and the body.

autonomic nervous system

The part of the nervous system that controls body functions without conscious thought, such as heart rate, breathing and digestion.

numbness

Loss or reduction of feeling in a part of the body.

neuron

A nerve cell: a cell that carries electrical and chemical signals through the nervous system.

Filed under

Look up another word