Podcast
Questions and Answers
Which of the following is a characteristic feature of most thoracic vertebrae?
Which of the following is a characteristic feature of most thoracic vertebrae?
- They are fused together.
- They lack bodies and vertebral arches.
- They are independent. (correct)
- They have fewer than seven processes for muscular and articular connections.
What is the purpose of the bilateral costal facets on the vertebral bodies of thoracic vertebrae?
What is the purpose of the bilateral costal facets on the vertebral bodies of thoracic vertebrae?
- For articulation with the heads of ribs (correct)
- To allow for flexibility and movement
- For muscular and articular connections
- To provide support for the spinal column
Which thoracic vertebrae have only a single pair of whole costal facets?
Which thoracic vertebrae have only a single pair of whole costal facets?
- T2 and T3
- T1 and T2
- T10 and T11
- T11 and T12 (correct)
Where are the superior and inferior costal facets typically located on the bodies of typical thoracic vertebrae?
Where are the superior and inferior costal facets typically located on the bodies of typical thoracic vertebrae?
Why do the superior costal facets of vertebra TI not have demifacets?
Why do the superior costal facets of vertebra TI not have demifacets?
How many bilateral pairs of costal facets does vertebra T10 have?
How many bilateral pairs of costal facets does vertebra T10 have?
Where are the whole costal facets located in vertebrae T11 and T12?
Where are the whole costal facets located in vertebrae T11 and T12?
How are the superior and inferior articular facets oriented in typical thoracic vertebrae?
How are the superior and inferior articular facets oriented in typical thoracic vertebrae?
What is the purpose of the bilateral joint planes between adjacent thoracic vertebrae?
What is the purpose of the bilateral joint planes between adjacent thoracic vertebrae?
Study Notes
Characteristics of Thoracic Vertebrae
- Most thoracic vertebrae have a characteristic feature: bilateral costal facets on the vertebral bodies.
Costal Facets
- The bilateral costal facets on the vertebral bodies of thoracic vertebrae articulate with the heads of ribs, forming a joint.
- The superior and inferior costal facets are typically located on the bodies of typical thoracic vertebrae.
- Vertebra T1 has no demifacets on its superior costal facets.
Exceptional Thoracic Vertebrae
- Vertebrae T11 and T12 have whole costal facets located on their bodies.
- Vertebra T10 has two bilateral pairs of costal facets.
Articular Facets
- The superior and inferior articular facets in typical thoracic vertebrae are oriented in an anteroposterior direction.
Joint Planes
- The bilateral joint planes between adjacent thoracic vertebrae allow for slight movements and flexibility.
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Description
Test your knowledge of thoracic vertebrae and their characteristic features with this quiz. Learn about bilateral costal facets and other important aspects of these vertebrae.
