| cor | The muscular organ that maintains the circulation of the blood. C. Adiposum a heart that has undergone fatty degeneration or that has an accumulation of fat around it, also called fat or fatty, heart. C. Arteriosum the left side of the heart, so called because it contains oxygenated (arterial) blood. C. Biloculare a congenital anomaly characterised by failure of formation of the atrial and ventricular septums, the heart having only two chambers, a single atrium and a single ventricle and a common atrioventricular valve. C. Bovinum (L. Ox heart) a greatly enlarged heart due to a hypertrophied left ventricle, also called c. Taurinum and bucardia. C. Dextrum (L. Right heart) the right atrium and ventricle. C. Hirsutum, c. Villosum. C. Mobile (obs.) an abnormally movable heart. C. Pendulum a heart so movable that it seems to be hanging by the great blood vessels. C. Pseudotriloculare biatriatum a congenital cardiac anomaly in which the heart functions as a three chambered heart because of tricuspid atresia, the right ventricle being extremely small or rudimentary and the right atrium greatly dilated. Blood passes from the right to the left atrium and thence disease due to pulmonary hypertension secondary to disease of the lung or its blood vessels, with hypertrophy of the right ventricle. Origin: L. Cordis (18 Nov 1997) |
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| cor adiposum | Fatty degeneration of the myocardium, accumulation of adipose tissue on the external surface of the heart with occasional infiltration of fat between the muscle bundles of the heart wall. Synonym: cor adiposum. (05 Mar 2000) |
| cor biloculare | A heart in which the interatrial and interventricular septa are absent or incomplete. (05 Mar 2000) |
| cor bovinum | <anatomy, cardiology, pathology> A very large heart usually due to chronic hypertension or, more often to aortic valve disease. Synonym: bucardia, cor bovinum. (05 Mar 2000) |
| cor mobile | A heart that moves unduly on change of bodily position. Synonym: movable heart. (05 Mar 2000) |
| cor pendulum | An extreme form of cor mobile in which the heart appears to be suspended by the great vessels. Synonym: pendulous heart. (05 Mar 2000) |
| cor pulmonale | Enlargement of the right ventricle in the face of pulmonary hypertension that may occur primarily or secondary to emphysema or bronchiectasis. Eventually the enlarged right ventricle weakens resulting in right-sided congestive heart failure. (27 Sep 1997) |
| cor triatriatum | <cardiology, embryology> A congenital anomaly characterised by the presence in the atrium of a perforated muscular membrane which separates the atrium into upper and lower chambers. (12 Dec 1998) |
| cor triloculare | <cardiology, embryology> Three-chambered heart due to absence of the interatrial or the interventricular septum. (05 Mar 2000) |
| cor triloculare biatriatum | <cardiology, embryology> Absence of the interventricular septum. (05 Mar 2000) |
| cor triloculare biventriculare | <cardiology, embryology> Absence of the interatrial septum. (05 Mar 2000) |
| coracidium | The ciliated first-stage aquatic embryo of pseudophyllid and other cestodes with aquatic cycles; within the ciliated embryophore is a hooked larva, the hexacanth, that develops in the intermediate host, usually an aquatic crustacean, into the next larval stage, the procercoid. (05 Mar 2000) |
| coracoacromial | Relating to the coracoid and acromial processes. Synonym: acromiocoracoid. (05 Mar 2000) |
| coracoacromial arch | A protective arch formed by the smooth inferior aspect of the acromion and the coracoid process of the scapula with the coracoacromial ligament spanning between them. This osseoligamentous structure overlies the head of the humerus, preventing its upward displacement from the glenoid fossa. (05 Mar 2000) |
| coracoacromial ligament | <anatomy> The heavy arched fibrous band that passes between the coracoid process and the acromion above the shoulder joint; the osseofibrous arch thus formed prevents upward dislocation of the shoulder (glanohumeral) joint. Synonym: ligamentum coracoacromiale. (05 Mar 2000) |