Emissary occipital foramen.
214 skulls were studied for the present study. A small foramen in the squamous part of the occipital bone just behind foramen magnum was noticed for the passage of emissary vein in one skull only, probably connecting occipital sinus with suboccipital venous plexus.
D002550:Cerebral Veins / Q000033:anatomy & histology*; D005539:Foramen Magnum / Q000033:anatomy & histology*; D006801:Humans; D009777:Occipital Bone / Q000033:anatomy & histology*