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Encyclopedia > Pterygoid fossa

The Pterygoid fossa, or the "sphenoid bone" is wedged between several other bones in the front of the cranium. It consists of a central part and two wing-like structures that extend sideways toward each side of the skull. This bone forms the base of the cranium, the sides of the skull, and the floors and sides of the eye sockets (orbits).

  Results from FactBites:
Infratemporal Fossa (3258 words)
it transmits the nerve of the pterygoid canal from the pterygoid region to the pterygopalatine fossa
medial pterygoid branch of the mandibular division of the trigeminal nerve (V) pterygoid branch of the maxillary a.
of the pterygoid canal, descending palatine a., sphenopalatine a.
II. Osteology. 5a. 5. The Sphenoid Bone. Gray, Henry. 1918. Anatomy of the Human Body. (2775 words)
145) forms part of the middle fossa of the skull; it is deeply concave, and presents depressions for the convolutions of the temporal lobe of the brain.
The anterior surface of the pterygoid process is broad and triangular near its root, where it forms the posterior wall of the pterygopalatine fossa and presents the anterior orifice of the pterygoid canal.
The lateral surface of this plate forms part of the pterygoid fossa, the medial surface constitutes the lateral boundary of the choana or posterior aperture of the corresponding nasal cavity.
  More results at FactBites »



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