There are two main types of curvatures, based on whether they bend forwards, towards the body’s center in a soft ‘C’ shape, or backwards, away from the body’s center in a reverse ‘C’ shape the term ‘lordosis’ refers to the spine’s curvatures that bend backwards, away from the body’s center, while ‘kyphosis’ refers to a forward-bending curve. The spine is naturally curved because it makes it stronger, more flexible, and facilitates the even distribution of weight and stress that occurs during movement, and this is important because a variety of common spinal conditions involve a loss of the spine’s healthy curves. The cervical spine refers to the neck the thoracic spine includes the middle and upper back, while the lumbar spine includes the lower back.Įach section has a corresponding curvature, which is why when viewed from the front and/or back, the spine appears straight, but when viewed from the side, it has a soft ‘S’ shape. The spine is made up of three main sections: cervical, thoracic, and lumbar. Spinal Conditions and the Spine’s Structure.
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