| maxillary sinus | A air filled cavity within the maxilla (bone that forms the face and upper jaw). The maxillary sinus is located just below the bony prominence of the cheek (27 Sep 1997) |
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| maxillary sinusitis | Inflammation of the maxillary sinus. In most cases it is the result of infection by the bacteria haemophilus influenzae, streptococcus pneumoniae, and staphylococcus aureus. This condition may be acute or chronic. (12 Dec 1998) |
| maxillary sinus neoplasms | Neoplasms or tumours of the maxillary sinus. The majority of paranasal sinus neoplasms arise here. They develop silently when confined to the sinus and produce symptoms on extension through the walls. (12 Dec 1998) |
| maxillary sinus radiograph | A radiographic frontal view of the maxillary sinuses, orbits, nasal structures and zygomas; permits direct comparison of the sides. Synonym: Waters' view radiograph. (05 Mar 2000) |
| maxillary surface of palatine bone | The lateral surface of the perpendicular plate of the palatine bone. Synonym: facies maxillaris ossis palatini. (05 Mar 2000) |
| maxillary tuberosity | The bulging lower extremity of the posterior surface of the body of the maxilla, behind the root of the last molar tooth. Synonym: tuber maxillae, eminentia maxillae, maxillary eminence. (05 Mar 2000) |
| maxillary vein | <anatomy, vein> The posterior continuation of the pterygoid plexus; it joins the superficial temporal vein to form the retromandibular vein. Synonym: vena maxillaris. (05 Mar 2000) |
| median anterior maxillary cyst | A cyst in or near the incisive canal, arising from proliferation of epithelial remnants of the nasopalatine duct; the most common maxillary development cyst. Synonym: median anterior maxillary cyst, nasopalatine duct cyst. (05 Mar 2000) |
| median maxillary anterior alveolar cleft | <anatomy> An asymptomatic midline defect of the maxillary anterior ridge; the result of a failure of fusion or development of the lateral halves of the palate. (05 Mar 2000) |
| periarterial plexus of maxillary artery | <anatomy, artery> An autonomic plexus on the maxillary artery derived from the external carotid plexus. Synonym: internal maxillary plexus, maxillary plexus, plexus maxillaris internus. (05 Mar 2000) |
| middle meningeal branch of maxillary nerve | <anatomy, nerve> Recurrent branch of maxillary nerve distributed with the anterior branch of the middle meningeal arteyr to the meninges of the anterior portion of the middle cranial fossa. Synonym: ramus meningeus medius nervi maxillaris, middle meningeal nerve. (05 Mar 2000) |
| posterior superior alveolar branches of maxillary nerve | <anatomy, nerve> The branches of the superior alveolar nerves that supply the maxillary sinus and the molar tooth. Synonym: rami alveolares superiores posteriores nervi maxillaris. (05 Mar 2000) |
| pterygoid branch of maxillary artery | <anatomy, artery> Pterygoid branches of middle meningeal artery. Synonym: rami pterygoidei arteriae maxillaris. (05 Mar 2000) |
| superior maxillary nerve | <anatomy, nerve> The intermediate sensory division of the trigeminal (5th cranial) nerve. The maxillary nerve carries general afferents from the intermediate region of the face including the lower eyelid, nose and upper lip, the maxillary teeth, and parts of the dura. (12 Dec 1998) |
| inferior maxillary nerve | <anatomy, nerve> A branch of the trigeminal (5th cranial) nerve. The mandibular nerve carries motor fibres to the muscles of mastication and sensory fibres to the teeth and gingivae, the face in the region of the mandible, and parts of the dura. (12 Dec 1998) |