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These numbers refer to the different regions of the vertebral column, also known as the spine, and the number of vertebrae found in each region
These numbers refer to the different regions of the vertebral column, also known as the spine, and the number of vertebrae found in each region. The vertebral column is made up of a series of bones called vertebrae, which protect the spinal cord and provide support for the body.
1. Cervical Region: The cervical region is the uppermost part of the vertebral column, located in the neck area. There are typically 7 cervical vertebrae in most humans. These vertebrae support the weight of the head and allow for a wide range of movement in the neck.
2. Thoracic Region: The thoracic region is located in the upper and middle back area. There are typically 12 thoracic vertebrae. The ribs are attached to the thoracic vertebrae, forming the rib cage, which helps protect vital organs such as the heart and lungs.
3. Lumbar Region: The lumbar region is located in the lower back area, just above the pelvis. There are typically 5 lumbar vertebrae. The lumbar vertebrae are larger and stronger to provide support for the weight of the upper body and to help with movements such as bending and lifting.
4. Sacral Region: The sacral region is at the base of the vertebral column, below the lumbar region. It consists of the sacrum, a triangular-shaped bone formed by the fusion of 5 sacral vertebrae. The sacrum forms a strong connection between the vertebral column and the pelvic bones.
5. Coccygeal Region: The coccygeal region is also known as the tailbone. It is located at the very bottom of the vertebral column. The coccyx is formed by the fusion of 4 coccygeal vertebrae. It provides attachment for various muscles and ligaments.
Understanding the number and structure of the vertebrae in each region of the spine is important for studying human anatomy, diagnosing and treating spinal injuries or conditions, and performing surgical procedures related to the spine.
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