<prompt> All the following are contents of suboccipital triangle EXCEPT:Veebral aeryDorsal ramus of C1 nerveSub occipital plexus of veinOccipital aery  <response>: Contents of suboccipital triangle are : veebral aery 3rd pa, suboccipital nerve dorsal ramus of C1 and suboccipital venous plexus. Occipital aery lies in occipital not suboccipital triangle. Suboccipital triangle is a muscular space situated deep on posterior aspect of the neck, below occipital bone, one on each side of the midline and bounded by four suboccipital muscles. 