Thoracic Spine & Ribs

What are the points on the thoracic vertebrae that articulate with the ribs called?

Demifacets

Which facets are oriented dorsally, cranially, and laterally?

Superior

Which facets are oriented ventrally, caudally, and medially?

Inferior

Ribs 1-7 are known as

True ribs

Ribs 8-10 are known as

False ribs

Ribs 11 & 12 are known as

Floating ribs

Which type of rib articulates with the vertebrae and the sternum?

True ribs

Which type of rib articulates with the vertebrae and the sternum through costal cartilage?

False ribs

Which type of rib articulates only with the vertebrae and not the sternum?

Floating ribs

What type of joint is the costotransverse joint?

Synovial

What type of costovertebral joint exists between a rib, two adjacent vertebrae, and an IV disc?

Typical

What type of costovertebral joint exists only between the rib and the corresponding vertebral body?

Atypical

What type of costovertebral joint exists concerning ribs 2-9?

Typical

What type of costovertebral joint exists concerning ribs 1 & 10-12?

Atypical

What is the classification of the costovertebral joints?

Synovial

What is the classification of the manubriosternal joint?

Synchondrosis

What is the classification of the xyphisternal joint?

Synchondrosis

What is the classification of the costochondral joints?

Synchondrosis

What is the classification of the chondrosternal joints at ribs 1, 6, & 7?

Synchondrosis

What is the classification of the chondrosternal joints at ribs 2-5?

Synovial

What is the classification of the interchondral joints at ribs 6-10?

Synovial

Which plane do the upper ribs move in during respiration?

Frontal

Which plane do the lower ribs move in during respiration?

Sagital