| condylus lateralis femoris | The lateral condyle is longer than the medial condyle. Synonym: condylus lateralis femoris. (05 Mar 2000) |
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| condylus lateralis tibiae | The lateral condyle is longer than the medial condyle. Synonym: condylus lateralis tibiae. (05 Mar 2000) |
| condylus medialis | Condyle closest to midline. Synonym: condylus medialis. (05 Mar 2000) |
| condylus medialis femoris | The shorter condyle closest to the midline. Synonym: condylus medialis femoris. (05 Mar 2000) |
| condylus medialis tibiae | The shorter condyle closest to the midline. Synonym: condylus medialis tibiae. (05 Mar 2000) |
| condylus occipitalis | One of two elongated oval facets on the undersurface of the occipital bone, one on each side of the foramen magnum, which articulate with the atlas. Synonym: condylus occipitalis. (05 Mar 2000) |
| cone | 1. <plant biology> In gymnosperms and club mosses, a group of sporophylls arranged compactly on a central axis, in the angiosperm family Casuarina, a woody multiple fruit incorporating the bracts and bracteoles associated with the flowers. 2. <physiology> The retinal cone responsible for colour vision. (03 Jul 1999) |
| cone biopsy | <gynaecology, procedure> A procedure which excises a cone of tissue (mucous membrane) off the cervix for purpose of diagnostics and therapeutics (removes precancerous cells). See: cervical dysplasia. (05 Jan 1998) |
| cone cell | <ophthalmology, physiology> One of the two photoreceptor cell types in the vertebrate retina. In cones the photopigment is in invaginations of the cell membrane of the outer segment. Cones are less sensitive to light than rods, and are differentially sensitive to particular wavelengths of light and therefore important for colour vision. They provide vision with higher spatial and temporal acuity, and it is the combination of signals from cones with different pigments that facilitates colour vision. There are three types of cones, each type sensitive to red, green or blue. Present in large numbers in the fovea. (03 Jul 1999) |
| cone cell of retina | 1. <plant biology> In gymnosperms and club mosses, a group of sporophylls arranged compactly on a central axis, in the angiosperm family Casuarina, a woody multiple fruit incorporating the bracts and bracteoles associated with the flowers. 2. <physiology> The retinal cone responsible for colour vision. (03 Jul 1999) |
| cone degeneration | A retinal abnormality in which colour perception is severely deficient and typical changes occur in electroretinogram. See: achromatopsia. Synonym: cone degeneration. (05 Mar 2000) |
| cone disks | Membranous disk's of flattened sacs about 14 nm thick that occur in the outer segment of cones of the retina. (05 Mar 2000) |
| cone down | To narrow a beam of X-rays to a region of interest using a collimator or cone; colloq., to delimit one's attention or activities. (05 Mar 2000) |
| cone dystrophy | A retinal abnormality in which colour perception is severely deficient and typical changes occur in electroretinogram. See: achromatopsia. Synonym: cone degeneration. (05 Mar 2000) |
| cone fibre | A part of the cone cell of the retina; the inner cone fibre is a slender axon-like part of the cone extending from the cell body to the pedicle located in the outer plexiform layer of the retina; in the outer fovea, where the cones are much elongated, they narrow to an (05 Mar 2000) |