postsphenoidal
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postsphenoid bone — postsphenoidal bone see under part … Medical dictionary
postsphenoid part of sphenoid bone — postsphenoidal part of sphenoid bone the posterior portion of the sphenoid bone; in the fetus it consists of separate basisphenoid, pterygoid, and alisphenoid parts, first cartilaginous and later bony, which fuse to each other and to the… … Medical dictionary
alisphenoid — Relating to the greater wing of the sphenoid bone. [L. ala, + sphen, wedge] * * * ali·sphe·noid .ā ləs fē .nȯid, .al əs adj belonging or relating to or forming the wings of the sphenoid or the pair of bones that fuse with other sphenoidal… … Medical dictionary
basisphenoid bone — a bone in the floor of the cranium of embryos of many different animal species. In humans, before birth it becomes part of the postsphenoidal part of the sphenoid bone (see under part); in most other animals it persists as a separate bone between … Medical dictionary
presphenoid part of sphenoid bone — presphenoidal part of sphenoid bone the anterior portion of the sphenoid bone; it develops separately in the fetus and unites with the postsphenoidal part between the seventh and eighth months of intrauterine life. Called also presphenoid bone … Medical dictionary
