bimaxillary
premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the whole, of the oral edge of the upper jaw. Teeth may be present. In Diodontidae, the premaxillae are ankylosed and form a single bone. Absent in Chondrostei. In Holostei (Lepisosteus and Amia) the bone has two ossification centres and therefore is a double bone. Holostei and Teleostei have an ascending process anteriorly but these may not be homologous. Posterior to the ascending process in Teleostei there may be an articular and a postmaxillary process, and a posterior extension, the caudal process. Also called premaxillary, surmaxillary, or intermaxillary)

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • bimaxillary — bi·max·il·lar·y (bī măkʹsə lĕr ē) adj. Relating to or affecting both jaws. * * * …   Universalium

  • bimaxillary — Relating to both the right and left maxillae; sometimes used when describing something affecting both halves of the upper jaw. * * * bi·max·il·lary (bi makґsĭ lar″e) pertaining to or affecting both jaws …   Medical dictionary

  • bimaxillary — bi·maxillary …   English syllables

  • bimaxillary —   a. pertaining to both jaws …   Dictionary of difficult words

  • bimaxillary — (ˈ)bī, |bī+ adjective Etymology: bi (I) + maxillary 1. : of or relating to the two halves of the maxilla 2. anthropology : of or relating to the distance between the lower margins of the sutures of the maxilla and malar bones …   Useful english dictionary

  • bimaxillary protrusion — the projection of both the maxilla and the mandible beyond normal limits in relation to the cranial base …   Medical dictionary

  • bimaxillary dentoalveolar protrusion — the positioning of the entire dentition forward with respect to the facial profile …   Medical dictionary

  • protrusion — 1. The state of being thrust forward or projected. 2. In dentistry, a position of the mandible forward from centric relation. [L. protrusio] bimaxillary p. the excessive forward projection of both the maxilla and the mandible in …   Medical dictionary

  • Maxillomandibular advancement — (MMA) or orthognathic surgery, also sometimes called Bimaxillary Advancement (Bi Max), or Maxillomandibular Osteotomy (MMO), is a surgical procedure which moves the jaw top (maxilla) and bottom (mandible) forward. Used to correct facial deformity …   Wikipedia

  • intermaxillary — premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the whole, of the oral …   Dictionary of ichthyology

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