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What vertebrae are the coastal processes located?
The coastal processes are located on the thoracic vertebrae. These processes articulate with the ribs to form the thoracic cage, which protects the vital organs in the thoracic cavity.
Why does the head pivots on the second vertebrae?
The second vertebrae has a dens (meaning tooth) which sticks up into the ring made by the atlas (the first vertebra). The head can pivot with this type of joint. A person can nod the head "no".
What are the attachment of the diaphragm?
The xiphoid process of the sternum, the coastal margin of the thoracic wall, ends of ribs XI and XII, ligaments that span across structures of the posterior abdominal wall; and lumbar vertebrae
Most stress bearing vertebrae?
The lower lumbar vertebrae are the most stress bearing vertebrae.
What is total number of vertebrae in the horse is approximately?
A typical horse has around 54 to 60 vertebrae in its spine. This includes 7 cervical vertebrae (neck), 18 thoracic vertebrae (chest), 6 lumbar vertebrae (lower back), 5 sacral vertebrae (pelvis), and 16-18 coccygeal vertebrae (tail). The exact number can vary slightly among individual horses.
Why is there no transverse coastal facets on the last two thoracic vertebrae?
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.
What vertebrae has articular facets on the transverse processes?
You have such facets on thoracic vertebrae. They are there to hold the ribs.
Thoracic vertebrae differ from the others in that?
they have facets for attachment of ribs
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
What bone is an example of a facet?
Any of the vertebrae or lumbar all have facets on them, an example would be the articulate facet of vertebra
How many vertebras are in the spine?
There are a total of 33 vertebrae in the vertebral column, if assuming 4 coccygeal vertebrae.The individual vertebrae, named according to region and position, from superior to inferior, are:Cervical: 7 vertebrae (C1-C7) C1 is known as "atlas" and supports the head, C2 is known as "axis"Possesses bifid spinous processes, which is absent in C1 and C7Small-bodiedThoracic: 12 vertebrae (T1-T12) Distinguished by the presence of coastal facets for the articulation of the heads of ribsBody is intermediate in size between the cervical and lumbar vertebraeLumbar: 5 vertebrae (L1-L5) Has a large bodyDoes not have coastal facets nor transverse process foraminaSacral: 5 (fused) vertebrae (S1-S5)Coccygeal: 4 (3-5) (fused) vertebrae (Tailbone)
Thoracic vertebrae can be distinguished from the other vertebrae by the presence of what?
Thoracic vertebrae can be distinguished from other vertebrae by the presence of costal facets, which are specific surfaces for the articulation with ribs. These facets allow for the attachment of the ribs, contributing to the ribcage's structural integrity. Additionally, thoracic vertebrae have a more prominent spinous process and are typically larger than cervical vertebrae but smaller than lumbar vertebrae.
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 special features are present on the thoracic vertebrae for rib articulations?
spinous process, facets, and demifacets
What does a neck joint do?
Cervical vertebrae articulate at tiny facets that don't allow for much movement but when combined with all the vertebrae in conjunction you get a range of movements from rotation to flexion to circumduction.
Which type of vertebra has facets that articulate with the tubercle of the ribs?
The thoracic vertebra
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.
