| cardinal | Chief or principal;in embryology, relating to the main venous drainage. Origin: L. Cardinalis, principal (05 Mar 2000) |
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| cardinal ligament | <anatomy> A fibrous band attached to the uterine cervix and the vault of the lateral fornix of the vagina; continuous with the tissue ensheathing the pelvic vessels. Synonym: cervical ligament of uterus, ligamentum transversale colli, Mackenrodt's ligament. (05 Mar 2000) |
| cardinal ocular movements | Eye rotations to the right and left, upward to the right and left, and downward to the right and left, to diagnose positions of gaze. (05 Mar 2000) |
| cardinal points | The four point's in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six point's of a compound optical system: the anterior focal point, the posterior focal point, the two principal point's, and the two nodal point's. (05 Mar 2000) |
| cardinal veins | The major systemic venous channels in adult primitive vertebrates and in the embryos of higher vertebrates; the anterior cardinal veins are the major drainage channels from the cephalic part of the body, and the (05 Mar 2000) |
| anterior cardinal veins | See: cardinal veins. (05 Mar 2000) |
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| posterior cardinal veins | From the caudal part; the common cardinal veins, formed by the anastomosis of the anterior and posterior cardinal vein's, are the main systemic return channels to the heart; in the older literature, sometimes called Cuvier's ducts. (05 Mar 2000) |
| levoatrio-cardinal vein | <anatomy, vein> The communication of a systemic vein with the left atrium, other than a left superior vena cava or coronary sinus; may be the right superior vena cava. (05 Mar 2000) |