| alveolar abscess |
A pocket of pus adjacent to or within (apical abscess) the tooth's root caused by plaque and calculus invasion.
Symptoms include tooth pain and tenderness that may be accompanied by facial swelling and a fever.
Treatment includes antibiotics and a thorough cleansing of the infected site by a dentist.
See: apical abscess.
(27 Sep 1997) |
| alveolar adenocarcinoma |
<tumour> Adenocarcinoma of the lung in which tumour cells form structures resembling alveoli.
(05 Mar 2000) |
| alveolar air |
The gas in the pulmonary alveoli, where O2-CO2 exchange with pulmonary capillary blood occurs.
Synonym: alveolar air.
(05 Mar 2000) |
| alveolar angle |
The angle between the horizontal plane and a line connecting the base of the nasal spine and the middle point of the projection of the alveolus of the maxilla.
(05 Mar 2000) |
| alveolar arch of maxilla |
The free border of the alveolar process of the maxilla.
Synonym: arcus alveolaris maxillae, limbus alveolaris.
(05 Mar 2000) |
| alveolar-arterial oxygen difference |
The difference or gradient between the partial pressure of oxygen in the alveolar spaces and the arterial blood: P(A-a)02. Normally in young adults this value is less than 20 mm Hg.
See: alveolar gas equation.
(05 Mar 2000) |
| alveolar atrophy |
Diminution in size of the supportive tissues of the teeth due to lack of function, reduced blood supply, or unknown causes.
(05 Mar 2000) |
| alveolar body |
That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth.
(12 Dec 1998) |
| alveolar bone |
That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth.
(12 Dec 1998) |
| alveolar bone loss |
The resorption of bone in the supporting structures of the maxilla or mandible as a result of periodontal disease.
(12 Dec 1998) |
| alveolar canals |
Canals in the body of the maxilla that transmit nerves and vessels from the alveolar foramina to the maxillary teeth.
Synonym: canales alveolares, alveolodental canals, dental canals.
(05 Mar 2000) |
| alveolar cell |
Cell of the air sac of the lung.
(18 Nov 1997) |
| alveolar cell carcinoma |
<tumour> A carcinoma, thought to be derived from epithelium of terminal bronchioles, in which the neoplastic tissue extends along the alveolar walls and grows in small masses within the alveoli; involvement may be uniformly diffuse and massive, or nodular, or lobular; microscopically, the neoplastic cells are cuboidal or columnar and form papillary structures; mucin may be demonstrated in some of the cells and in the material in the alveoli, which also includes denuded cells; metastases in regional lymph nodes, and even in more distant sites, are known to occur, but are infrequent.
Synonym: alveolar cell carcinoma, bronchiolar adenocarcinoma, bronchiolo-alveolar carcinoma, bronchioloalveolar adenocarcinoma.
(05 Mar 2000) |
| alveolar crest |
The portion of the alveolar bone extending beyond the periphery of the socket, lying interproximally, the top of the residual alveolar bone.
(05 Mar 2000) |
| alveolar dead space |
The difference between physiologic dead space and anatomical dead space; it represents that part of the physiologic dead space resulting from ventilation of relatively underperfused or nonperfused alveoli; it differs specifically in being placed so as to fill and empty in parallel with functional alveoli, rather than being interposed in the conducting tubes between functional alveoli and the external environment.
(05 Mar 2000) |
