The human vertebral column, often referred to as the spinal column or simply the backbone, is a complex and intricate structure vital to our anatomy. This column plays a pivotal role in connecting our brain to the rest of our body and ensuring seamless communication. But what makes up this essential component of our anatomy? Let’s delve deeper.
The vertebral column is made up of 33 individual bones known as vertebrae. These vertebrae are separated by spongy discs and are classified into four specific areas. The cervical area, comprising seven bones, is located in the neck with the first cervical vertebra acting as the support for the skull. Following the cervical spine, the thoracic spine encompasses the upper and mid-back regions. For more details on the vertebral column’s structure, you can visit here.
Housed within this column of bones is the spinal cord. Beginning at the base of the brainstem, it extends down to the lumbar region, approximately 44 cm in length. Its diameter varies between 1 cm to 1.5 cm. Along the spinal cord’s length, two consecutive rows of nerve roots emerge on each side, ultimately forming 31 pairs of spinal nerves. For an in-depth look at spinal cord structure, click here.
The spinal cord’s significance is underscored by its role as the primary pathway linking the brain to the peripheral nervous system. The bony spinal column acts as a protective barrier for the spinal cord. To gain a deeper understanding, you can visit this source.
The robustness and health of the spinal column are paramount. However, like other parts of the body, it can be subject to disorders and diseases. Inflammatory disorders of the spine, for example, are often diagnosed with a combination of physical exams, blood tests, and X-rays. To get more information on spinal inflammatory disorders, click here.
Birth defects affecting the spinal column, such as spina bifida, result in the improper formation of the spinal column, leaving a section of the spinal cord and nerves exposed. In the U.S., it’s estimated that 1 in 2,000 live births will have this defect. Further reading on spina bifida can be found here.
In summary, the spinal column is not just a series of bones stacked together. It’s a dynamic structure, vital for transmitting information between the brain and body. By understanding its anatomy and potential disorders, we can better appreciate its value in our everyday lives.
