| 释义 |
intorsion
intorsion or intortionn (Botany) botany a spiral twisting in plant stems or other partsTranslationsintorsion
intorsion[in′tȯr·shən] (biology) Inward rotation of a structure about a fixed point or axis. intorsion
intorsion [in-tor´shun] tilting of the upper part of the vertical meridian of the eye toward the midline of the face.in·tor·sion (in-tōr'shŭn), Conjugate rotation of the upper poles of each cornea inward. [L. in-torqueo, pp. tortus, to twist] in·tor·sion (in-tōr'shŭn) Conjugate rotation of the upper poles of each cornea inward. [L. in-torqueo, pp. tortus, to twist]torsion Rotation of an eye about an anteroposterior axis. If the upper pole of the vertical meridian of the cornea appears to rotate inward, it is called intorsion, and outward, extorsion. If the eye rotates to the right it may be called dextrotorsion and if it rotates to the left it may be called laevotorsion. It may occur as a result of a head tilt, extraocular muscle weakness or rotation of the eye to a tertiary position. Syn. cycloductin; cyclorotation; torsional movement. See Donder's law; tertiary position; incongruous hemianopia.ThesaurusSeetorsion |