| ABIM | American Board of Internal Medicine |
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| ABIMCE | American Board of Internal Medicine certifying examination |
| APDIM | Association of Program Directors in Internal Medicine |
| ASAIO | American Society for Artificial Internal Organs |
| ASIF | Association for Study of Internal Fixation |
| facial bones | The facial skeleton, consisting of bones situated between the cranial base and the mandibular region. While some consider the facial bones to comprise the hyoid, palatine, and zygomatic bones, mandible, and maxilla, others include also the lacrimal and nasal bones, inferior nasal concha, and vomer but exclude the hyoid bone. (12 Dec 1998) |
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| facial canal | The bony passage in the temporal bone through which the facial nerve passes; the facial canal commences at the internal auditory meatus with the horizontal part which passes at first anteriorly (medial crus of facial canal) then turns posteriorly at the geniculum of the facial canal to pass medial to the tympanic cavity (lateral crus of facial canal); finally, it turns downward (descending part of facial canal) to reach the stylomastoid foramen. Synonym: canalis nervi facialis, aqueductus fallopii, fallopian aqueduct, fallopian canal. (05 Mar 2000) |
| facial cleft | A cleft resulting from incomplete merging or fusion of embryonic processes normally uniting in the formation of the face, e.g., cleft lip or cleft palate. Synonym: prosopoanoschisis. (05 Mar 2000) |
| facial colliculus | Prominent portion of the medial eminence, just rostral to the medullary striae in the rhomboidal fossa; it is formed by the internal genu of the facial nerve and the abducens nucleus around which the facial fibres curve. Synonym: colliculus facialis, abducens eminence, eminentia abducentis, eminentia facialis, facial eminence, facial hillock. (05 Mar 2000) |
| facial diplegia | Paralysis of both sides of the face. (05 Mar 2000) |
| facial eczema | A photosensitivity disease of sheep in New Zealand associated with ingestion of plants during periods when autumn rains produce lush growth following seasons of dryness and close grazing; the predisposing cause is hepatic disease, which results from toxins of the fungus Pithomyces chartarum, which grows on the plants. (05 Mar 2000) |
| facial eminence | Prominent portion of the medial eminence, just rostral to the medullary striae in the rhomboidal fossa; it is formed by the internal genu of the facial nerve and the abducens nucleus around which the facial fibres curve. Synonym: colliculus facialis, abducens eminence, eminentia abducentis, eminentia facialis, facial eminence, facial hillock. (05 Mar 2000) |
| facial expression | Observable changes of expression in the face in response to emotional stimuli. (12 Dec 1998) |
| facial hemiatrophy | Atrophy of one half of the face which is sometimes progressive, and is of unknown cause. (12 Dec 1998) |
| facial hemiatrophy of Romberg | Atrophy of one half of the face which is sometimes progressive, and is of unknown cause. (12 Dec 1998) |
| facial hemiplegia | Paralysis of one side of the face, the muscles of the extremities being unaffected. (05 Mar 2000) |
| facial hillock | Prominent portion of the medial eminence, just rostral to the medullary striae in the rhomboidal fossa; it is formed by the internal genu of the facial nerve and the abducens nucleus around which the facial fibres curve. Synonym: colliculus facialis, abducens eminence, eminentia abducentis, eminentia facialis, facial eminence, facial hillock. (05 Mar 2000) |
| facial index | Relation of the length of the face to its maximal width between the zygomatic prominences; to get (05 Mar 2000) |
| facial injuries | General or unspecified injuries to the soft tissue or bony portions of the face. (12 Dec 1998) |
| facial lymph nodes | A chain of lymph nodes lying along the facial vein that receive afferent vessels from the eyelids, nose, cheek, lip, and gums, and send efferent vessels to the submandibular nodes. Synonym: nodi lymphatici faciales. (05 Mar 2000) |