Sacrum (Lateral view)		The sacrum is composed of three fused vertebrae. It articulates with the innominate bone at the point indicated by the green arrow. Like the lumbar vertebrae, the points of articulation of the prezygapophyses are oriented dorsomedially and the postzygapophyses are oriented ventrolaterally.
Sacrum (Dorsal view)		The postzygapophyses are not visible in this view. The sacrum articulates with caudal vertebrae at the point indicated by the red arrow and the lumbar vertebrae at the point indicated by the blue arrow. Return to vertebral column Return to tutorial