All symptoms of leg pain caused by the conditions listed above are often referred to as sciatica. This is because the pain often radiates along the sciatic nerve, which originates with certain nerve roots in the low back and runs through the back of each leg into the foot.
Trackback - A method by which a blogger receives notification which other bloggers link to his or her blog entry
Members can follow one another, like content with the click of a button and comment on posts. A popular tool is the re-blog button. Users can click on a post they like and it will be published to their own Tumblr for followers to see. Tumblr limits users to 250 daily posts to control bandwidth use and spamming.