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Britannica Beyond We’ve created a new place where questions are at the center of learning.It causes a physical deformity, making the spine look like the letter C or S instead of the letter I.
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Scoliosis is a condition characterized by the abnormal curvature of the spine that causes a deviation to one side.
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COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.From tech to household and wellness products. Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.The vertebral column (also called the spinal column or backbone) is made up of 33 bones. Demystified Videos In Demystified, Britannica has all the answers to your burning questions. Disc the disk-shaped cushions between the bones of the spine.Director: Paul Verhoeven Stars: Peter Weller, Nancy Allen, Dan OHerlihy, Ronny Cox. Spinal stenosis causes back pain and leg pain. In a dystopic and crime-ridden Detroit, a terminally wounded cop returns to the force as a powerful cyborg haunted by submerged memories. However, the narrowing may progress to cause squeezing (compression) of the spinal nerves or compression of the spine. spinal cord 1,394 Lumbar Spine Anatomy Premium High Res Photos. Choose royalty-free collections > Choose editorial collections > Embeddable images. The cervical spinal nerves differ from this pattern. The narrowing may not cause any symptoms. NUMBER OF PEOPLE AGE PEOPLE COMPOSITION ETHNICITY. Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives. Spinal stenosis is a term used to describe a narrowing of the spinal canal.This is explained in more detail on the next page. However, the same is not true of how the spinal nerves are labeled, and back problems are often described by both the spinal segment and the nerve root that is affected. For example, the C1-C2 disc in the neck lies between the first and second vertebrae in the cervical spine, and the T1-T2 disc lies between the first and second vertebrae in the thoracic spine.
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The L4 vertebra and L5 vertebra, along with the disc in between them, make up the L4-L5 segmentĭiscs are always labeled for the vertebrae that they lie between, and this is consistent throughout the length of the spine - for the cervical, thoracic and lumbar spine. The disc and vertebra above and below the disc comprise one segment of the spine - usually called a spinal level or spinal segment.
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It provides attachments for the rib cage and provides stability for the upper body. Thoracic Spine The thoracic spine has 12 vertebrae, which are numbered from T1 through T12. It is incredibly flexible, and it supports the head. Spinal Discs are in Between Each Vertebra The cervical spine has seven vertebrae, which are numbered from C1 through C7.
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