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Why is there no transverse coastal facets on the last two thoracic vertebrae?
Wiki User
∙ 12y ago
The simplest answer is because the 11th and 12th ribs (the last two) don't articulate with the transverse process of their corresponding vertebrae. Thus, transverse coastal facets are not needed.
Wiki User
∙ 12y ago
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Articular facets on the transverse processes are characteristics of vertebrae?
The Thoracic Vertebrae have such features and are in the correct position to articulate with the ribs correctly (the cervical vertebra are too high to touch the ribs in the neck region, and the lumbar, sacral and coccyx are all too low to intersect the ribs!)Thoracic Vertebrae
Why the body of the lumbar vertebra is larger than that of the thoracic vertebra and in the thoracic vertebra more than in the cervical vertebra?
The thoracic spine has twelve vertebral bodies. These structures have very little motion because they are firmly attached to the ribs and sternum (breastbone). Distinguished by the presence of coastal facets for the articulation of the heads of ribs. Body is intermediate in size between the cervical and lumbar vertebrae The lumbar spine has five vertebral bodies that extend from the lower thoracic spine (upper back) to the sacrum (bottom of the spine). The vertebral bodies of the lower back are the largest of the spine because they bear the majority of the body's weight. The paired facet joints on the back of the vertebral segments are aligned so that they allow flexion/extension but not a lot of rotation. Does not have coastal facets nor transverse process foramina
How are thoracic vertebrae 11 and 12 different from all the other thoracic vertebrae?
The ribs attached to 11 and 12 do not connect to anything in the front of the body. They are said to be, "Floating".
What bones articulate with thoracic facets and demifacets?
The facets on the body articulate with next vertebra, while those on the transverse process articulate with the heads of ribs.
What provides an articulation point for the ribs?
transverse costal facets
What vertebrae has articular facets on the transverse processes?
You have such facets on thoracic vertebrae. They are there to hold the ribs.
What type of vertebrae has coastal facets?
These facets are associated with ribs which involve the thoracic vertebrae.
What characteristics help you distinguish between the different types of vertebrae?
Cervical Vertebrae- has transverse foramen, and a bifid tip of spinous process Thoracic Vertebrae- Has coastal facets on the sides of the body Lumar Vertebrae- has no transverse foramen, no bifurcated tip, and no facets on the sides of the body
How are thoracic 11 and 12 different from the other vertebrae?
Unlike all other thoracic vertebrae, 11th and 12th thoracic vertebrae lack articulation surfaces (for tubercle of ribs) on their transverse processes. The articulation facets (for head of rib) on the body of 11th and 12th thoracic vertebrae are large.
Thoracic vertebrae differ from the others in that?
they have facets for attachment of ribs
Articular facets on the transverse processes are characteristics of vertebrae?
The Thoracic Vertebrae have such features and are in the correct position to articulate with the ribs correctly (the cervical vertebra are too high to touch the ribs in the neck region, and the lumbar, sacral and coccyx are all too low to intersect the ribs!)Thoracic Vertebrae
Why the body of the lumbar vertebra is larger than that of the thoracic vertebra and in the thoracic vertebra more than in the cervical vertebra?
The thoracic spine has twelve vertebral bodies. These structures have very little motion because they are firmly attached to the ribs and sternum (breastbone). Distinguished by the presence of coastal facets for the articulation of the heads of ribs. Body is intermediate in size between the cervical and lumbar vertebrae The lumbar spine has five vertebral bodies that extend from the lower thoracic spine (upper back) to the sacrum (bottom of the spine). The vertebral bodies of the lower back are the largest of the spine because they bear the majority of the body's weight. The paired facet joints on the back of the vertebral segments are aligned so that they allow flexion/extension but not a lot of rotation. Does not have coastal facets nor transverse process foramina
How are thoracic vertebrae 11 and 12 different from all the other thoracic vertebrae?
The ribs attached to 11 and 12 do not connect to anything in the front of the body. They are said to be, "Floating".
What special features are present on the thoracic vertebrae for rib articulations?
spinous process, facets, and demifacets
What are the features of thoraci vertebrae?
Thoracic vertebrae are between the cervical vertebrae and the lumbar vertebrae. The ones farther down the spine are larger. They have facets on the sides of the bodies for articulation with the heads of the ribs.
What bones articulate with thoracic facets and demifacets?
The facets on the body articulate with next vertebra, while those on the transverse process articulate with the heads of ribs.
How can you distinguish a lumbar vertebra from a cervical vertebra?
the nerve cord is enclosed while a invertabrae nerve is opened
