| atlanto-odontoid | <anatomy> Relating to the atlas and the dens of the axis. (05 Mar 2000) |
|---|---|
| check ligaments of odontoid | One of a pair of short stout bands that extends from the side of the dens of the axis to the tubercle on the medial aspect of the occipital condyle. Synonym: check ligaments of odontoid. Synonym: alar folds. (05 Mar 2000) |
| odontoid | <anatomy> Having the form of a tooth; toothlike. Of or pertaining to the odontoid bone or to the odontoid process. Odontoid bone, the anterior process of the centrum of the second vertebra, or axis, in birds and mammals. See Axis. Origin: Gr., a tooth + form: cf.F. Odontoide. Source: Websters Dictionary (01 Mar 1998) |
| odontoid ligament | Winglike lateral fringes or expansions of the plica synovialis infrapatellaris. Synonym: ligamenta alaria, plicae alares, alar ligaments, odontoid ligament. (05 Mar 2000) |
| odontoid process | The toothlike process on the upper surface of the axis, which articulates with the atlas above. (12 Dec 1998) |
| odontoid process of epistropheus | Synonym: Tooth. 2. A strong toothlike process projecting upward from the body of the axis, or epistropheus, around which the atlas rotates. Synonym: odontoid process of epistropheus, odontoid process. Origin: L. (05 Mar 2000) |
| odontoid vertebra | <botany> A stem, commonly used for the main stem of a whole plant or of an inflorescence. (09 Oct 1997) |
| bone within a bone | <radiology> STOP heavy metal, S: sickle cell disease, T: Thorotrast, O: osteopetrosis, P: Paget's disease, heavy metals, hypervitaminosis D (12 Dec 1998) |
| acute reflex bone atrophy | Atrophy of bones, commonly of the carpal or tarsal bones, following a slight injury such as a sprain. See: causalgia, reflex sympathetic dystrophy. Synonym: acute reflex bone atrophy, posttraumatic osteoporosis, Sudeck's syndrome. Origin: L. English sweat (05 Mar 2000) |
| air-bone gap | The difference between the threshold for hearing acuity by bone conduction and by air conduction. (05 Mar 2000) |
| Albrecht's bone | A small bone between the basioccipital and basisphenoid. (05 Mar 2000) |
| allogeneic bone marrow transplant | <haematology, procedure> A bone marrow transplant using marrow collected from a matched healthy donor, usually a brother or sister. The risks associated with the transplant increase with age and 50 years of age is generally regarded as the upper limit. (13 Nov 1997) |
| 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 supporting bone | alveolar process |