Random FAQOakland Art
Latest FAQ View All Facts View Images View Maps
Search Thru Facts

Cracking Knuckles

Welcome to randomFAQ! Our Random Fact generator will add another random fact or frequently asked question from our massive database every day. Using the HTML code provided on the right side of each page, you can display a specific or random FAQ, or the latest fact of the day, on your website, blog, or MySpace profile. Just choose which fact to display, and any color to match your site. Please enjoy the unlimited use of this free service!

Fact of the Day  


More Information  

Joints are held together by ligaments because there is a gap between the sections of bone. In this gap is synovial fluid which serves to keep things lubricated and nourished. Oxygen, nitrogen, and carbon dioxide are also present in this join fluid. When one bends a joint, the fluid-filled gap stretches and the gases are released from the fluid. When the knuckle actually produces a cracking sound, the noise is made by the rapid release of gas from the synovial fluid.
After this, the ligaments snap back into place and actually create a second noise. This is also the noise heard if there is "cracking" at the hip or knee.

In terms of arthritis, doctors are on the fence. Some studies show no sign of arthritis after 35 years of knuckle cracking while others warn of other permanent pains that may result that just may not be considered arthritis.

!, Alice. "Go Ask Alice!: Knuckle cracking ." Go Ask Alice! - Columbia University's Health Q&A Internet Service. 27 Sep. 1996. 18 Jan. 2009 .

Brodeur, Raymond. "What makes the sound when we crack our knuckles?." Science News, Articles and Information | Scientific American. 26 Oct. 2001. 18 Jan. 2009 .

"What causes the noise when you crack a joint? (Everyday Mysteries: Fun Science Facts from the Library of Congress)." Library of Congress Home. 1 Mar. 2007. 18 Jan. 2009 .


Fact of the Day, "Blue-Eyed Family"

Random Facts:

View All Facts

View Images

View Maps


Get randomFAQs on your page!
Choose your options and copy and paste the code generated below onto your website, blog, or MySpace profile:
Random FAQ
Display Fact  
Random FAQ
Color    pick | random ]
Random FAQ

Oakland Art

Random FAQComments or Suggestions?
Random FAQIf you have any questions, comments, or
Random FAQsuggestions, please direct them to John at:


Spread the word. Print these promotional flyers and pass them around or hang them up:

Copyright © 1999 - 2019 Pittsburgh Web Design by Websomniac, Corp. All rights reserved.