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The Thoracic Vertebrae Quiz

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Questions and Answers

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?

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?

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?

Superior and inferior posterolateral margins of the bodies Signup and view all the answers

Why do the superior costal facets of vertebra TI not have demifacets?

There are no demifacets on the C7 vertebra above. Signup and view all the answers

How many bilateral pairs of costal facets does vertebra T10 have?

One Signup and view all the answers

Where are the whole costal facets located in vertebrae T11 and T12?

On their pedicles. Signup and view all the answers

How are the superior and inferior articular facets oriented in typical thoracic vertebrae?

Superior facets face posteriorly and inferior facets face anteriorly. Signup and view all the answers

What is the purpose of the bilateral joint planes between adjacent thoracic vertebrae?

To limit rotational movements between vertebrae. Signup and view all the answers

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.