ethmoidal air cell

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• air cell — n a cavity or receptacle for air esp ALVEOLUS (b) * * * 1. any minute bodily chamber filled with air, such as an alveolus of the lung. 2. a cavity containing air and surrounded by a bodily structure, usually one of the bones of the head, such as… …   Medical dictionary

• Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …   Medical dictionary

• ethmoidal bulla — bulla ethmoidalis [TA] a rounded projection of the ethmoid bone into the lateral wall of the middle nasal meatus just below the middle nasal concha, enclosing a large ethmoid air cell …   Medical dictionary

• ethmoid ostium — ethmoidal ostium, ostium of ethmoidal sinus, ostium of ethmoid sinus any of various small openings connecting an ethmoidal sinus or air cell to the nasal cavity …   Medical dictionary

• List of anatomical topics — This page aims to list articles related to anatomy. This list is not necessarily complete or up to date if you see an article that should be here but isn t (or one that shouldn t be here but is), please update the page accordingly. NOTOC A… …   Wikipedia

• Orbital process of palatine bone — Bone: Orbital process of palatine bone Left palatine bone. Nasal aspect. Enlarged …   Wikipedia

• Ethmoid sinus — Bone: Ethmoid sinus Paranasal sinuses …   Wikipedia

• Nerve — A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. See nervous system. * * * A whitish cordlike structure composed of one or more bundles (fascicles) of myelinated …   Medical dictionary

• Orbital part of frontal bone — Frontal bone. Outer surface. (The Pars orbitalis is the bottom third.) F …   Wikipedia

• Maxillary sinus — Outline of bones of face, showing position of air sinuses. Latin sinus maxilliaris Gray s …   Wikipedia

• sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary