presphenoid part of sphenoid bone

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. 2011.

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  • 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

  • Sphenoid bone — Bone: Sphenoid bone Cranial Bones. Only the end of the wing of the sphenoid bone is visible …   Wikipedia

  • presphenoid — In front of the sphenoid bone or cartilage. * * * pre·sphe·noid sfē .nȯid n a presphenoid bone or cartilage usu. united with the basisphenoid in the adult and in humans forming the anterior part of the body of the sphenoid presphenoid also… …   Medical dictionary

  • Presphenoid bone — Presphenoid Pre*sphe noid, a. (Anat.) Situated in front of the sphenoid bone; of or pertaining to the anterior part of the sphenoid bone (i. e., the presphenoid bone). [1913 Webster] {Presphenoid bone} (Anat.), the anterior part of the body of… …   The Collaborative International Dictionary of English

  • Presphenoid — Pre*sphe noid, a. (Anat.) Situated in front of the sphenoid bone; of or pertaining to the anterior part of the sphenoid bone (i. e., the presphenoid bone). [1913 Webster] {Presphenoid bone} (Anat.), the anterior part of the body of the sphenoid… …   The Collaborative International Dictionary of English

  • presphenoid — 1. adjective Situated in front of the sphenoid bone 2. noun The anterior part of the sphenoid bone (a separate bone before being fused) Syn: presphenoid bone …   Wiktionary

  • 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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