What are successive vertebrae?
What are successive vertebrae?
Successive vertebrae are strung together by dorsal and ventral longitudinal ligaments to form the vertebral canal, a protective cylinder for the spinal cord, nerve roots, and cauda equina. The arch gives rise to articular processes at either end, a dorsal spinous process, and laterally projecting transverse processes.
What are the 5 types of vertebrae and how many are in each section?
From top to bottom, the vertebrae are:
- Cervical spine: 7 vertebrae (C1–C7)
- Thoracic spine: 12 vertebrae (T1–T12)
- Lumbar spine: 5 vertebrae (L1–L5)
- Sacrum: 5 (fused) vertebrae (S1–S5)
- Coccyx: 4 (3–5) (fused) vertebrae (Tailbone)
What are the 26 vertebrae called?
spine
The spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body — 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx.
What is the difference between lamina and pedicle?
Each pedicle forms one of the lateral sides of the vertebral arch. The pedicles are anchored to the posterior side of the vertebral body. Each lamina forms part of the posterior roof of the vertebral arch.
Are there 26 or 33 bones in the spine?
The spine is made up of 33 vertebrae. More than 13 million neurons are found in the spine. Adults only have 26 vertebrae because bones fuse together as we age.
What is facet arthropathy?
Facet arthropathy is a degenerative condition that affects the spine. The spine is made up of segments of vertebrae running along the spinal column. Between each vertebra are two facet joints. The facet joints along the posterior of the spine help align the vertebrae and limit motion.
What is lamina vertebrae?
The lamina is the flattened or arched part of the vertebral arch, forming the roof of the spinal canal; the posterior part of the spinal ring that covers the spinal cord or nerves.
