Reference Article

from Wikipedia, the free encyclopedia

Peripheral nervous system

The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system (the brain and spinal cord) to serve the limbs and organs, for example.

Unlike the central nervous system, however, the PNS is not protected by bone or the blood-brain barrier, leaving it exposed to toxins and mechanical injuries.

The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system.

Note: This article excerpts material from the Wikipedia article "Peripheral nervous system", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-10-21 at 4:42 am EDT

Fossilized Arthropod Has Spider-Like Brain

Fossilized Arthropod Has Spider-Like Brain

Newsy (Oct. 17, 2013) A fossil more than 500 million years old of the best-preserved nervous system ever found shows spiders and scorpions had related ancestors.
Powered by NewsLook.com
Stem Cell Trial Seeks Longer Lives for Victims of Deadly ALS

Stem Cell Trial Seeks Longer Lives for Victims of Deadly ALS

Reuters (Jan. 8, 2014) Researchers at Emory University in the United States are hoping to extend the lives of patients diagnosed with the deadly neuro-degenerative disease, Amyotrophic lateral sclerosis (ALS). ALS kills by destroying a patient's nervous system but in clinical trials, the scientists say injections of neural stem cells show promise in slowing the disease's progress. Ben Gruber reports.
Powered by NewsLook.com
Giant Air Breathing Amazonian Fish Discovered

Giant Air Breathing Amazonian Fish Discovered

Buzz60 (Oct. 15, 2013) Dr. Donald Stewart from SUNY College of Environmental Science and Forestry is saying he's found a brand new fish. It's a part of the Arapaima family and Stewart is nervous about where the new fish is turning up. Patrick Jones (@Patrick_E_Jones) has the rest.
Powered by NewsLook.com
"Piggy Litter" Lets Chinese Swine Live High on the Hog

"Piggy Litter" Lets Chinese Swine Live High on the Hog

Reuters (May 26, 2013) A Chinese agricultural institute has developed a microbial bedding system for pigsties that it says helps pigs stay healthy and grow faster. Called a "microbial mattress" the system absorbs and neutralizes the pigs' waste which can later but turned into fertilizer. Tara Cleary reports.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins