![]() ![]() The atlas vertebra articulates with the occiput superiorly at the atlanto-occipital joint and with the axis inferiorly at the atlantoaxial joint. The upper cervical spine comprises of the atlas (C1) and axis (C2), which are different from rest of the cervical vertebrae. ![]() In contrast to other parts of the spine, the cervical spine has transverse foramina in each vertebra through which the vertebral arteries supply blood to the brain.īased on the structural diversity in the cervical spine, it can be divided into two parts: the upper and lower cervical spine. The cervical spine is highly mobile compared to the thoracic or lumbar spine. The cervical spine comprises of the first 7 vertebrae, which form the neck. The spine can be divided into 4 parts: cervical, thoracic, lumbar and sacral region. The purpose of the canal is to create a bony casing from the head to the lower back, through which the spinal cord passes. The spinal canal is formed by the placement of single vertebral foramina one on top of the other to form a canal. The spinous process forms a steeple at the apex of the laminae and is the part of our spine that is felt directly under the skin. The transverse processes spread out from the side of the pedicles like wings and help to anchor the surrounding muscle to the vertebral arch. The laminae of the vertebra can be described as a pair of flat-arched bones that form a component of the vertebral arch. Two strong pedicle bones join the vertebral arch to the body of the vertebrae. The body is cylindrical in shape, strong and stable. Parts of a VertebraĪ single vertebra is made up of two parts, the front portion is called the body and the back portion is referred to as the vertebral or neural arch. The vertebrae and discs form the spinal column from the neck to the pelvis, giving symmetry and support to the body. It is made up of bony segments called vertebrae with fibrous tissue called intervertebral discs between them. doi:10.The spine, also called the backbone, plays a vital role in stability, smooth movement and protection of the delicate spinal cord. Dimensions and Anatomical Variants of the Foramen Transversarium of Typical Cervical Vertebrae. Sangari S, Dossous P, Heineman T, Mtui E. (2012) American Journal of Roentgenology. ![]() MDCT of Variations and Anomalies of the Neural Arch and Its Processes: Part 2-Articular Processes, Transverse Processes, and High Cervical Spine. Mellado, Raquel Larrosa, Joaquín Martín, Nerea Yanguas, Susana Solanas, María Rosa Cozcolluela. Radiology of lumbar vertebral pedicles: variants, anomalies and pathologic conditions. N P Patel, R Kumar, M Kinkhabwala, S Wengrover. Cupid's bow contour of the vertebral body: evaluation of pathogenesis with bone densitometry and imaging-histopathologic correlation. K K Chan, D J Sartoris, P Haghighi, P Sledge, E Barrett-Connor, D T Trudell, D Resnick. Vertebral anomalies can occur with numerous syndromic as well as non-syndromic conditions including: C7)Īccessory ossicle of the anterior arch of the atlas Variant anatomy Vertebral bodyĬongenital anomalies of the posterior atlas archīifid spinous process (when atypical for the level, e.g. Knowledge of basic vertebral anatomy and ossification is essential for describing and understanding the range of anomalies. The vertebral column is affected by a range of anatomical variants of the body and/or neural arch as well as accessory ossicles. ![]()
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