Vertebral Column Sternum And Rib Cage

The last of the bones of the axial skeleton is the horseshoe shaped hyoid. This bone is unique in that it does not articulate with any other bone. It is located inferior to the mandible, and provides a floor of support for the tongue.

Figure 10.2 Vertebral column

Atlas Axis C7 Cervical curve Coccyx Facet Intervertebral foramen Lumbar curve L4 Sacral curve Sacrum Thoracic curve

Exercise 10.3

Label Figure 10.3, comparing the figure to the laboratory specimens. Take careful note of the attachments of the ribs to the thoracic vertebrae and the sternum. Locate the hyoid on the full skeleton and on Figure 8.2.

Spinal Column Bone Names
Figure 10.3 Rib Cage

Body Cartilage Manubrium Sternum Vertebral ribs Vertebrosternal ribs Vertebrochondral ribs Xiphoid process

1. _ Name the regions of the vertebra column in order, superior to inferior.

5. __Which foramen is a hole between vertebrae?

6. __The vertebrae join each other at their bodies and (6) .

7. __The vertebra which articulates with the head is the (7) .

8. __The first vertebra is CI, also known as the (8) .

9. __Which vertebra allows rotation of the head?

10. __What is the scientific name for the tailbone?

12. _ CI through C6 are characterized by a (12) spinous process.

13. _ Which vertebrae have transverse foramina?

14. _ Which vertebrae have facets for ribs?

15. _ How many pair of ribs are there?

16. _ Which ribs do not articulate anteriorly?

17. _ Name the three parts of the sternum from superior to inferior.

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