postsphenoid part of sphenoid bone

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 presphenoid part before birth. Called also postsphenoid bone.

Medical dictionary. 2011.

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  • postsphenoid — post·sphe·noid (pōst sfeґnoid) 1. pertaining to the posterior portion of the body of the sphenoid bone. 2. postsphenoid part of sphenoid bone; see under part …   Medical dictionary

  • Postsphenoid — Post*sphe noid, a. [Pref. post + sphenoid.] (Anat.) Of or pertaining to the posterior part of the sphenoid bone. [1913 Webster] …   The Collaborative International Dictionary of English

  • Bone — is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body …   Medical dictionary

  • Ossification of sphenoid — Figure 4 : Sphenoid bone at birth, posterior aspect. Until the seventh or eighth month of fetal life the body of the sphenoid consists of two parts: one in front of the tuberculum sellæ, the presphenoid, with which the small wings are… …   Wikipedia

  • Ossification of the sphenoid — Until the seventh or eighth month of fetal life the body of the sphenoid consists of two parts: one in front of the tuberculum sellæ, the presphenoid, with which the small wings are continuous; the other, comprising the sella turcica and dorsum… …   Wikipedia

  • basisphenoid — Relating to the base or body of the sphenoid bone; denoting the independent center of ossification in the embryo that forms the posterior portion of the body of the sphenoid bone. * * * …   Medical dictionary

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