Dictionary > Maxillary antrum

Maxillary antrum

Definition
noun, plural: maxillary antra
A large, pyramidal in shape, air-filled paranasal cavity within the body of the maxilla, communicating with the middle meatus of the nose on the same side.
Supplement
It is the largest of the paranasal sinuses. It is located just below the bony prominence of the cheek.
It consists of three recesses:

  • an alveolar recess pointed inferiorly, bounded by the alveolar process of the maxilla
  • zygomatic recess pointed laterally, bounded by the zygomatic bone
  • infraorbital recess pointed superiorly, bounded by the inferior orbital surface of the maxilla

Synonyms:

  • maxillary sinus
  • Antrum of Highmore


    You will also like...

    Lake Wakatipu, New Zealand
    New Zealand’s Unique Geographical History

    Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

    Early Earth
    The Origins of Life

    This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

    Ecological Research Measuring & Analysis
    Ecological Research: Measuring & Analysis

    This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

    human brain structure
    The Conscious & Unconscious Nervous System

    This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

    Human Reproduction
    Human Reproduction

    Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

    The Human Physiology
    The Human Physiology

    Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..