the nerve cord is enclosed while a invertabrae nerve is opened
There are several differences :
1. Size: Lumbar vertebrae are much larger than thoracic vertebra. All skeletal elements are larger in lumbar vertebra
2. Body: The vertebral body of lumbar vertebrae is larger and cylindrical / kidney shaped whereas that of a thoracic vertebra is smaller and heart shaped.
3. Verebral Foramen: Circular in thoracic Vertebrae and Triangular in Lumbar.
4. Thoracic Vertebra articulate with the ribs and via the ribs to the sternum. They are therefore much less mobile and less likely to develop degenerative osteoarthritis. They have 6 additional facets on them which the lumbar do not have. 2 hemi-facets on each side of the body (total 4) for articulation with its own rib and with the rib below and a facet on each transverse process (total 2) for articulation with the tubercle of its own rib.
5. The zygapohyseal joints (joints between articular facets) of the thoracic vertebra are directed vertically so they limit flexion and extension but allow rotation. The zygapophyseal joints of lumbar vertebra are circular and the articular processes interlock thereby limiting rotation and indeed flexion and extension. However a fair amount of flexion and extension does take place.
6. Combined together, the thoracic vertebra give the thoracic spine a concave curvature anteriorly whereas the lumbar vertebra produce a lordosis (convex anteriorly)
7. The L5 or lowermost lumbar vertebra has massive transverse processes for attachment of the iliolumbar ligaments which connect the lumbar spine to the pelvis.
The easiest way is to take in cosideration the volume: the lumbar vertebra has a bigger volume than the cervical vertebrae. Also Lumbar vertebrae support more weight bearing than cervical vertebrae. They can be distinguished from cervical vertebrae because they do not have the foramen transversaruim within the transverse process. They also do not have facets on the sides of the body. Cervical vertebrae are immediately below the skull and support the neck. Cervical vertebrae also have a foramen in each transverse process, unlike thoracic and lumbar vertebrae.
Cervical vertebrae are the "top seven" vertebrae in the spine, from the base of the skull going downward. The thoracic vertebrae are the twelve vertebrae inferior to the seven cervical vertebrae. The thoracic vertebrae have attachments to the ribs.
Yes. From superior to inferior it is cervical vertebrae, thoracic vertebrae and lumbar vertebrae.
Cervical, thoracic, lumbar, sacral and coccygeal.
cervical vertebrae thoracic vertebrae. lumbar vertebrae
There are 5 different portions of the vertebra starting from top to bottom: 7 Cervical Vertebra 12 Thoracic Vertebra 5 Lumbar Vertebra 5 Sacral Vertebra 4 Coccygeal Vertebra
The thoracic vertebrae, of which there are 12.
The average dog has 26 vertebrae. 7 cervical, 13 thoracic, and 6 lumbar. Some breeds such as the English Bulldog may frequently have a 7th lumbar vertebra, or a portion of a vertebra called a transitional vertebra.
There are 5 lumbar vertebra
There are five lumbar vertebrae located in the lower back. These vertebrae receive the most stress and are the weight-bearing portion of the back. The lumbar vertebrae allow movements such as flexion and extension, and some lateral flexion. Thoracic vertebra Final Answer: lumbar vertebra
Cervical 1 vertebrae
The spine is made up of boney vertebra: Cervical spine, Thoracic spine, and Lumbar spine.