Back Objectives

These objectives are meant to assist you in learning the anatomy of the back. It is assumed you are familiar with the anatomical components (i.e., bones, muscles, nerves, arteries, etc.).


  1. Recognize the boundaries of each of the triangles of the back and explain their clinical significance.
  2. Compare and contrast 'true' back muscles from the overlying superficial muscles.
  3. State the functions of each group of muscles, their nerve supply and blood supply.
  4. Summarize the suboccipital region and the relationship of the vertebral artery and greater occipital nerve.
  5. Recall the composition of the vertebral column.
  6. Describe the relationship of the atlas and axis to the skull.
  7. Relate somite formation to segmentation of sclerotomes, myotomes, dermatomes, and the terms epimere and hypomere.
  8. Describe the anatomy of the spinal cord and its meninges.
  9. Explain the location, extent and contents of extradural, subdural and subarachnoid spaces.
  10. Compare and contrast a spinal nerve with a root and a ramus.
  11. Explain the composition of peripheral nerves.
  12. Describe the development of the vertebral column with respect to the spinal cord. What is the cauda equina?
  13. Summarize the basic procedure for a lumbar puncture including the spaces and layers penetrated by the needle during the procedure.
  14. Illustrate how damage to specific levels of the vertebral column relate to different levels of the spinal cord.
  15. Identify anatomic structures in radiographic studies including X-ray, CT scans and MRI films.

John A. McNulty, Ph.D.
Last Updated: July 13, 2005
Created: 1 March 1996