spine

Lamina

Lamina The structure indicated is the lamina of the vertebra. The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The vertebral arch is formed from two pedicles and two laminae. The pedicles attach on either side to the posterolateral aspects of the vertebral body and unite posteriorly with the laminae which complete the vertebral arch. The laminae provide attachment for the ligamentum flavum, which connect adjacent laminae along the length …

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lamina

Pedicle

Pedicle The structure indicated is the pedicle of the vertebra. The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The vertebral arch is formed from two pedicles and two laminae. The pedicles attach on either side to the posterolateral aspects of the vertebral body and unite posteriorly with the laminae which complete the vertebral arch. Learn more about the anatomy of the vertebrae in this tutorial.
pedicle

Transverse Process of Vertebra

Transverse Process of Vertebra The structure indicated is the transverse process of the vertebra. The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The transverse processes of the vertebrae extend from the vertebral arch at the point where the pedicles meet the lamina, and lie in between the superior and inferior articular processes. A facet on the transverse processes of the thoracic vertebrae serves as the point of articulation for …

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transverse process

Vertebral Foramen

Vertebral Foramen The structure indicated is the vertebral foramen. There are 33 vertebrae which make up the spinal column: 7 cervical 12 thoracic 5 lumbar 5 fused sacral vertebrae 3-4 fused coccygeal vertebrae The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The spinal cord passes through the vertebral foramina of the vertebrae: the collective vertebral foramina are referred to as the vertebral canal, or spinal canal. The anterior part …

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vertebral foramen

Vertebral Body

Vertebral Body The structure indicated is the vertebral body. There are 33 vertebrae which make up the spinal column: 7 cervical 12 thoracic 5 lumbar 5 fused sacral vertebrae 3-4 fused coccygeal vertebrae The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The vertebral body is the largest component of the vertebra. Between adjacent vertebrae within the spinal cord, the vertebral bodies are joined by intervertebral discs which form fibrocartilaginous …

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vertebral body

Superior Articular Process

Superior Articular Process The structure indicated is the superior articular process. There are 33 vertebrae which make up the spinal column: 7 cervical 12 thoracic 5 lumbar 5 fused sacral vertebrae 3-4 fused coccygeal vertebrae The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches The superior articular process articulates with the inferior articular process of the vertebrae above. These articulations are known as zyapophysial joints. The articular processes arise from …

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superior articular process

Transverse Foramen

Transverse Foramen The structure indicated is the transverse foramen of a cervical vertebra. There are 33 vertebrae which make up the spinal column: 7 cervical 12 thoracic 5 lumbar 5 fused sacral vertebrae 3-4 fused coccygeal vertebrae The typical vertebra consists of the following features: Vertebral body Vertebral arch (neural arch) consisting of lamina and pedicle Spinous process Transverse process Vertebral foramen (collectively form vertebral canal) Superior and inferior articular processes Superior and inferior vertebral notches Transverse foramina are only present in the cervical vertebrae. These foramina allow the passage of the vertebral artery and vein. The vertebral arteries arise …

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transverse foramen

Anulus Fibrosus

Anulus Fibrosus The structure indicated is the anulus fibrosus of the intervertebral disc. Intervertebral discs are found between adjacent vertebral bodies in the spinal column. Intervertebral discs are one of two major joint types found in the vertebrae, the other type being synovial joints between the articular processes. The symphyses between the vertebral bodies consists of hyaline cartilage which lines the vertebral body, and an intervertebral disc which is sandwiched between the two adjacent intervertebral bodies to form this fibrocartilaginous joint. The intervertebral disc consist of Anulus fibrosus (outer component) Nucleus pulposus (inner component) The anulus fibrosus forms the outer …

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Anulus Fibrosus