Sphenoidal rostrum

Rostrum sphenoideum

  • Latin synonym: Rostrum sphenoidale

Definition

The sphenoidal rostrum is triangular bony spine which sticks out from the lower surface of the body of sphenoid bone. This spine’s narrow edge fits snugly into the fissure between the two ala of the vomer bone. It then extends forward to join the sphenoidal crest found on the front surface of sphenoid bone’s body. The sphenoidal rostrum is bounded on each side by curved bony plates, that protrude out from the front and lower surfaces of sphenoid bone’s body, and are known as the sphenoidal conchae.

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Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.

  • Standring, S. (2016). ‘Chapter 32: Infratemporal and pterygopalatine fossae and temporomandibular joint’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 536.


Comparative anatomy in animals

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