| synchondrosis | Origin: NL, fr. Gr.; with + cartilage. <anatomy> An immovable articulation in which the union is formed by cartilage. Synchondro"sial. Source: Websters Dictionary (01 Mar 1998) |
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| synchondrosis arycorniculata | The junction of the corniculate cartilage (of Santorini) with the arytenoid. Synonym: synchondrosis arycorniculata. (05 Mar 2000) |
| synchondrosis epiphyseos | The line of junction of the epiphysis and diaphysis of a long bone where growth in length occurs. Synonym: linea epiphysialis, synchondrosis epiphyseos. (05 Mar 2000) |
| synchondrosis intraoccipitalis anterior | Cartilaginous union in the newborn between the lateral and the basilar portions of the occipital bone. Synonym: synchondrosis intraoccipitalis anterior, anterior intraoccipital joint. (05 Mar 2000) |
| synchondrosis intraoccipitalis posterior | Cartilaginous union between the squamous and lateral parts of the occipital bone in the newborn. Synonym: synchondrosis intraoccipitalis posterior, Budin's obstetrical joint, posterior intraoccipital joint. (05 Mar 2000) |
| synchondrosis manubriosternalis | The early union, by hyaline cartilage, of the manubrium and the body of the sternum, which later becomes a symphysial type of joint. Synonym: synchondrosis manubriosternalis. (05 Mar 2000) |
| synchondrosis petro-occipitalis | Fibrocartilage filling the petro-occipital fissure. Synonym: synchondrosis petro-occipitalis. (05 Mar 2000) |
| synchondrosis sphenoethmoidalis | Cartilaginous union between the body of the sphenoid and the posterior part of the ethmoidal labyrinth. Synonym: synchondrosis sphenoethmoidalis. (05 Mar 2000) |
| synchondrosis spheno-occipitalis | Cartilaginous union between the body of the sphenoid and the basilar portion of the occipital; it fuses by the twentieth year; incorrectly called spheno-occipital suture. Synonym: synchondrosis spheno-occipitalis, spheno-occipital joint, spheno-occipital suture. (05 Mar 2000) |
| synchondrosis sphenopetrosa | Sphenopetrous synchondrosis, fibrocartilage filling the sphenopetrosal fissure. Synonym: synchondrosis sphenopetrosa. (05 Mar 2000) |
| synchondrosis xiphosternalis | The cartilaginous union between the xiphoid process and the body of the sternum. Synonym: synchondrosis xiphosternalis. (05 Mar 2000) |
| burns, first degree | A first degree burn is superficial and has similar characteristics to a typical sun burn. The skin is red in colour and sensation is intact. In fact, it is usually somewhat painful. (12 Dec 1998) |
| ventriculography, first-pass | Radionuclide ventriculography where a bolus of radionuclide is injected and data are recorded from one pass through the heart ventricle. Left and right ventricular function can be analyzed independently during this technique. First-pass ventriculography is preferred over gated blood pool imaging for assessing right ventricular function. (12 Dec 1998) |
| Mendel's first law | Factors that affect development retain their individuality from generation to generation, do not become contaminated when mixed in a hybrid, and become sorted out from one another when the next generation of gametes is formed. Synonym: Mendel's first law. (05 Mar 2000) |
| mirror, first or front surface | <microscopy> An optical mirror on which the reflecting surface is applied to the front surface of the mirror instead of to the back, that is, to the first surface of incidence. (05 Aug 1998) |