| rami nasales laterales nervi ethmoidalis anterioris | <anatomy, nerve> Branches of nasociliary nerve distributed to walls of nasal cavity. Synonym: rami nasales laterales nervi ethmoidalis anterioris. (05 Mar 2000) |
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| rami nasales mediales nervi ethmoidalis anterioris | <anatomy, nerve> Branches of nasociliary nerve distributed to the nasal septum. Synonym: rami nasales mediales nervi ethmoidalis anterioris. (05 Mar 2000) |
| crista ethmoidalis | Bony ridge which articulates with, or provides attachment for, any part of the ethmoid bone, especially the middle nasal concha. See: ethmoidal crest of maxilla, ethmoidal crest of palatine bone. Synonym: crista ethmoidalis. (05 Mar 2000) |
| crista ethmoidalis maxillae | A ridge on the upper part of the nasal surface of the frontal process of the maxilla that gives attachment to the anterior portion of the middle nasal concha. Synonym: crista ethmoidalis maxillae. (05 Mar 2000) |
| processus ethmoidalis | A projection of the inferior concha, situated behind the lacrimal process and articulating with the uncinate process of the ethmoid. Synonym: processus ethmoidalis. (05 Mar 2000) |
| hiatus ethmoidalis | A deep, narrow groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open. Synonym: hiatus semilunaris, hiatus ethmoidalis. (05 Mar 2000) |
| nervus ethmoidalis anterior | <anatomy, nerve> A branch of the nasociliary nerve; passes through anterior ethmoidal foramen on superomedial wall of orbit into cranial cavity, giving rise to anterior meningeal nerves, then passes through cribriform plates into nasal cavity, supplying anterosuperior nasal mucosa. Synonym: nervus ethmoidalis anterior. (05 Mar 2000) |
| nervus ethmoidalis posterior | <anatomy, nerve> A branch of the nasociliary nerve providing sensory innervation to the sphenoidal sinus and the posterior ethmoidal air cells. Synonym: nervus ethmoidalis posterior. (05 Mar 2000) |
| incisura ethmoidalis | An oblong gap between the orbital parts of the frontal bone in which the ethmoid bone is lodged. Synonym: incisura ethmoidalis. (05 Mar 2000) |
| labyrinthus ethmoidalis | A mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit. Synonym: labyrinthus ethmoidalis, ectethmoid, ectoethmoid, lateral mass of ethmoid bone. (05 Mar 2000) |
| fovea ethmoidalis | The roof of the ethmoid air cells. (05 Mar 2000) |
| alar part of nasalis muscle | <anatomy> See: nasalis muscle. Synonym: pars alaris musculi nasalis. (05 Mar 2000) |
| angulus oculi nasalis | The angle formed by the union of the upper and lower eyelids medially. Synonym: angulus oculi medialis, angulus oculi nasalis, internal canthus, medial canthus. (05 Mar 2000) |
| arteria nasalis posterior septi | A branch of the sphenopalatine artery that supplies the nasal septum and accompanies the nasopalatine nerve. Synonym: arteria nasalis posterior septi. (05 Mar 2000) |
| arteriola nasalis retinae inferior | The branch of the central artery of the retina that supplies the lower medial, or nasal, part of the retina. Synonym: arteriola nasalis retinae inferior. (05 Mar 2000) |