Office Hours Our General Schedule. Monday: am - pm pm - pm. Tuesday: am - pm pm - pm. Wednesday: pm - pm. Thursday: am - pm pm - pm. Friday: Closed. Saturday: Closed. It is a thin rectangle of bone that provides muscle attachment points for the muscles that stabilize, flex, extend, and rotate the spine. The spinous process is considerably shorter, straighter, and thicker in T12 than it is in the superior thoracic vertebrae, closely resembling the spinous process of the lumbar vertebrae below.
Inside the vertebral arch is a hollow vertebral foramen that contains the spinal cord and spinal nerves. The strong bony tissue of the vertebral arch protects the delicate nervous tissue as it passes through the vertebral canal.
Extending vertically from the vertebral arch are two pairs of articular processes that form joints with the neighboring vertebra and help to stabilize the spine.
Also called the tenth thoracic vertebra, T10 is one of the twelve vertebrae of the thoracic spinal column. The nerves that control the muscles of the lower abdomen originate through here. The eleventh thoracic vertebra T11 is one of the last thoracic spinal vertebrae. The T12 vertebra is the last member of the thoracic spinal column before transitioning into the lumbar section of the spinal column.
The twelfth thoracic vertebra is the largest of the thoracic vertebrae. The first of the transition vertebrae, the T9 vertebrae location is between the T8 and T10 vertebrae.
It rests between the T10 and T12 vertebrae. The T12 vertebra sits right above the lumbar spinal column. It is the largest and most inferior of the thoracic spinal vertebrae.
The T12 vertebrae location is between the T11 vertebra and the first lumbar vertebra, L1, in the trunk region. Since the T9 vertebra directly communicates with the adrenal glands, damage to this vertebra may produce severe symptoms in the kidney area.
Any damage to the thoracic vertebrae causes moderate to severe back pain that is exacerbated by movement. An injury to the T10 vertebra will likely result in a limited or complete loss of use of the lower abdomen muscles, as well as the buttocks, legs, and feet.
A minor injury will result in minor symptoms such as weakness, numbness, as well as partial or complete lack of muscle control over only one side of the body. Severe damage to this vertebra can result in complete paraplegia. A T11 injury will demonstrate itself by severe back and leg pain. If the nerves in the T11 vertebrae are damaged, common symptoms include weakness and numbness in these areas.
Like the other transition vertebrae, T12 vertebra pain symptoms involve severe to moderate back pain depending on the seriousness of the injury. Limited function of the legs can result as well, though this may be limited to only one side of the body.
Although T9 - T12 are very similar, there are thoracic vertebrae differences. Each descending vertebrae is larger than the one before in order to support the weight of the above spinal column. Therefore, the T12 segment is larger than the previous T9 - T11 vertebrae. Additionally, each vertebrae protects spinal nerves that correspond to different areas. For instance, T9 contains nerves that connect to the kidney area while T12 has nerves that affect the buttocks and lower abdomen muscles.
The T9 - T12 are part of the twelve vertebrae that make up the thoracic section of the spinal column, which lies between the cervical and lumbar regions. Although thoracic spinal cord injuries are severe, they are not as fatal as SCI higher up on the spinal cord. Thoracic spinal cord injuries may affect one or both sides of the body, and although the long-term prognosis is good, early treatment is still critical for the outcome.
In a way we can look at the spine as having two halves. The upper half is the cervicothoracic and the lower half is the lumbosacral. I often teach that we are looking for two qualities in the spine—the ability to move each vertebrae in a chain like cat and cow, and the ability to solidify the spine as a solid pole as in a successful plank.
This less than smooth transition point between the thoracic and lumbar spine makes this a much more complicated proposition which is why this area of the spine is prone to dysfunction. I often refer to it as a collapse at T12 and to me, this is why so many people are shallow breathers depending too much on the thoracic cavity for their breathing technique.
This insecurity is non-negotiable—it is a function of the body that we must be aware of. The only way for this dicey transition to be handled successfully is if all of the bones below the thoracolumbar joint are well aligned.
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