| infraorbital | <anatomy> Below the orbit; as, the infraorbital foramen; the infraorbital nerve. Origin: Infra + orbital. Source: Websters Dictionary (01 Mar 1998) |
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| infraorbital artery | <anatomy, artery> Origin, third part of maxillary; distribution, upper canine and incisor teeth, inferior rectus and inferior oblique muscles, lower eyelid, lacrimal sac, maxillary sinus, and upper lip; anastomoses, branches of ophthalmic, facial, superior labial, transverse facial, and buccal. Synonym: arteria infraorbitalis. (05 Mar 2000) |
| infraorbital canal | A canal running beneath the orbital margin of the maxilla from the infraorbital groove, in the floor of the orbit, to the infraorbital foramen; it transmits the infraorbital artery and nerve. Synonym: canalis infraorbitalis. (05 Mar 2000) |
| infraorbital foramen | The external opening of the infraorbital canal, on the anterior surface of the body of the maxilla. Synonym: foramen infraorbitale. (05 Mar 2000) |
| infraorbital groove | A gradually deepening groove on the orbital surface of the maxilla, which leads to the infraorbital canal. Synonym: sulcus infraorbitalis. (05 Mar 2000) |
| infraorbital margin | The inferior half of the orbital rim, or the lower border of the orbital opening, formed by the maxilla medially and the zygomatic bone laterally. See: orbital rim. Synonym: margo infraorbitalis. (05 Mar 2000) |
| infraorbital nerve | <anatomy, nerve> The continuation of the maxillary nerve after it has entered the orbit, via the infraorbital fissure, traversing the infraorbital canal to reach the face; it supplies the mucosa of the maxillary sinus, the upper incisors, canine and premolars, the upper gums, the inferior eyelid and conjunctiva, part of the nose and the superior lip. Synonym: nervus infraorbitalis. (05 Mar 2000) |
| infraorbital region | The region of the face below the orbit and alongside the nose on each side. Synonym: regio infraorbitalis. (05 Mar 2000) |
| infraorbital suture | An inconstant suture running from the infraorbital foramen to the infraorbital groove. Synonym: sutura infraorbitalis. (05 Mar 2000) |
| anterior superior alveolar branches of infraorbital nerve | <anatomy, nerve> The branches of the superior alveolar nerve that supply the incisors, canines, premolars, and first molar by their contributions to the superior dental plexus. Synonym: rami alveolares superiores anteriores nervi infraorbitalis. (05 Mar 2000) |
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| auriculo-infraorbital plane | A standard craniometric reference plane passing through the right and left porion and the left orbitale; drawn on the profile radiograph or photograph from the superior margin of the acoustic meatus to the orbitale. Synonym: auriculo-infraorbital plane, eye-ear plane, Frankfort horizontal plane, Frankfort plane, infraorbitomeatal plane. (05 Mar 2000) |
| middle superior alveolar branch of infraorbital nerve | <anatomy, nerve> The middle superior alveolar branch, a branch of the superior alveolar nerve that contributes to the superior dental plexus. Synonym: ramus alveolaris superior medius nervi infraorbitalis. (05 Mar 2000) |
| superior labial branches of infraorbital nerve | <anatomy, nerve> Branches of infraorbital nerve to upper lip. Synonym: rami labiales superiores nervi infraorbitalis. (05 Mar 2000) |
| Dennie's infraorbital fold | An accentuated line or fold below the margin of the lower eyelid; characteristic in atopic dermatitis. Synonym: Dennie's infraorbital fold. (05 Mar 2000) |