The neck (cervical) and low back (lumbar) regions have a slight concave curve, and the thoracic and sacral regions have a gentle convex curve (Fig. 1).
What parts of the spine are concave?
The curves in the thoracic and sacral spine are kyphotic. A lordotic curve is concave (i.e. concavity towards the back of the spine), and is found in the cervical and lumbar levels of the spine.
Why is my spine concave?
Poor posture is one of the most common causes of hyperlordosis. When the body is in a seated position, muscles in the lumbar region can tighten too much as they try to stabilize and support the spinal column. This gradually pulls the spine out of alignment, causing increased curving of the spine.
Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
Which way is concave?
Convex and concave are two words that describe a line or shape, often in mathematics, science, or in relation to eyeglasses and mirrors. While convex means to bend or protrude outwards, concave is the opposite and means to bend inwards.
What is a convex curve called?
A parabola, a simple example of a convex curve.
Is it normal to have a curved spine?
In normal, healthy individuals, the spine always curves. However, it occurs in a very specific way. SpineUniverse explains that this curve is normally only visible when viewed from a side (aka lateral) view.
How much curve in spine is normal?
Front and side views of the body show normal alignment of the spine bones and the natural curves. When viewed from the front the spine is perfectly straight, but from the side it has three curves (Fig. 1). This curvature absorbs the shock of footsteps and positions our head naturally over the pelvis and hip.
Can a curved spine be corrected?
In moderate to severe cases, scoliosis may be corrected through bracing and/or surgery. If you suspect scoliosis, you should consult your doctor about an appropriate treatment plan.
What is a normal spine look like?
The normal spine has an S-shaped curve when viewed from the side. This shape allows for an even distribution of weight and flexibility of movement. The spine curves in the following ways: The cervical spine curves slightly inward, sometimes described as a backward C-shape or lordotic curve.