Foramen Synonyms

In the cervical region the ribs are much reduced, fused with their verte brae and enclosing the transverse canal or foramen.

Eventually, when the right and left feet of the coracoids overlap each other, the anterior sternal spine contains a foramen.

Near the base of the precoracoidal process is a small foramen for the passage of the nervus supracoracoideus.

The acetabulum is completely surrounded by these three bones, but its cup always retains an open foramen; from its posterior rim arises the strong antitrochanter.

This primitive condition occurs only in the Odontornithes, Ratitae and Tinami; in all others this notch becomes converted into a foramen ischiadicum, through which pass the big stems of the ischiadic nerves and most of the bloodvessels of the hind-limb.