Superior orbital fissure. Fissura orbitalis superior. Cleft between the greater and lesser wings of the sphenoid for the passage of nerves and veins. A B C

Greater wing of sphenoid. Ala major ossis sphenoidalis. AB C

Cerebral surface. Facies cerebralis. Surface of the greater wing facing the brain. A Temporal surface. Facies temporalis. Outward surface of the greater wing. B C Maxillary surface. Facies maxillaris. Surface of the greater wing facing the maxilla. The foramen rotundum opens here. C Orbital surface. Facies orbitalis. Surface of the greater wing facing the orbit. C Zygomatic border. Margo zygomaticus. Margin of the greater wing articulating with the zy-gomatic bone. C

Frontal border. Margo frontalis. Margin of the greater wing fused with the frontal bone. A Parietal border. Margo parietalis. Margin ofthe greater wing fused with the parietal bone. C Squamous border. Margo squamosus. Squamous margin of the greater wing that articulates with the temporal bone. A Infratemporal crest. Crista infratemporalis. Bony ridge between the vertical temporal surface and the horizontally-oriented inferior surface of the greater wing of the sphenoid. B C Foramen rotundum. Round opening in the great wing that extends anteriorly into the pter-ygopalatine fossa. It transmits the maxillary nerve. A B C

Foramen ovale. Opening for passage of the mandibular nerve in the medial part of the great wing, located in front of the foramen spinosum. AB

[Foramen venosum]. Opening occasionally present medial to the foramen ovale for passage of an emissary vein from the cavernous sinus. A B Foramen spinosum. Opening situated lateral to and behind the foramen ovale for passage of the middle meningeal artery. A B [Foramen petrosum]. [[Canaliculus innomina-tus.]] Opening occasionally present between the foramen ovale and the foramen spinosum for transmission of the lesser petrosal nerve. A B Angular spine of sphenoid. Spina ossis sphe-noidalis. Sharp, bony spur that extends downward from the greater wing. AB

Groove for the cartilaginous part of the auditory tube. Sulcus tubae auditoriae (audi-tivae). Shallow groove on the underside of the greater wing lateral to the root of the pterygoid process. B

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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