Appendix 1: Bone Surface Features - C) Tunnel/Passageways. (Pg. 285) Flashcards
What is the definition of an osseous ostium?
a round or oval opening on the surface of bone
What is the definition of an osseous foramen?
an ostium passing completely through a thin region of bone
What is the definition of an osseous canal?
an ostium passing completely through a thick region of bone
What is the name given to an ostium which does not completely penetrate through a region of bone but appears as a blind-ended passageway?
meatus
What is an additional example of an opening in bone?
fissure
What is the definition of an osseous fissure?
an irregular slit-like or crack-like appearance between the surfaces of adjacent bones
What are examples of an osseous fissure?
the superior orbital fissure primarily of the sphenoid bone: the inferior orbital fissure of the palatine, zygomatic, sphenoid and maxillary bones
