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The sphenoethmoidal recess is a small triangular space superior to the superior nasal meatus of the nasal cavity into which the sphenoidal sinus [1] [2] [3] opens. [4] The sphenoethmoidal recess is situated supero posterior to the superior nasal concha, [3] [2] between the superior nasal concha and the anterior aspect of the body of the sphenoid bone.
[2]: 500 One study found that carotid canal protrudation into the sphenoid sinus wall was present in 23.9–32.1% of males and 35.5–36.2% of females, dehiscence in carotid canal was detected more in females (34%) than in males (22%), optic canal protrudation was 33.3 and 30.5% in males and females, and optic canal dehiscence was detected in ...
The ethmoidal labyrinth is divided by multiple obliquely oriented, parallel lamellae. The first lamellae is equivalent to the uncinate process of ethmoid bone , the second corresponds the ethmoid bulla , and the third is the basal lamella, and the fourth is equivalent to the superior nasal concha .
The superior nasal concha is situated posterosuperiorly to the middle nasal concha.It forms the superior boundary of the superior nasal meatus.Superior to the superior nasal concha is the sphenoethmoidal recess where the sphenoid sinus communicates with the nasal cavity; the sphenoethmoidal recess is interposed between the superior nasal concha, and (the anterior aspect of) the body of ...
The following outline is provided as an overview of and topical guide to human anatomy: . Human anatomy is the scientific study of the morphology of the adult human.It is subdivided into gross anatomy and microscopic anatomy.
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The frontonasal duct passes inferior-ward [5] to open either [3] into the middle nasal meatus at the anterior end of [3] the ethmoidal infundibulum, [3] [5] [2] or into the anterior ethmoidal air cells (which then in turn drain into the nasal cavity). [3] The duct is lined by mucous membrane. [citation needed]
This space continues laterally as a three-dimensional slit-like space - the ethmoidal infundibulum. This is bounded by the uncinate process, medially, the orbital lamina of ethmoid bone (lamina papyracea), laterally, and the ethmoidal bulla, posterosuperiorly. This concept is easier to understand if one imagine the infundibulum as a prism so ...