63, Cambridge, Massachusetts, Harvard University Press, 1999. Online version at Harvard University Press. ISBN 978-0-674-99583-3. Virgil, Aeneid  [books 7–12], in Aeneid: Books 7–12. Appendix Vergiliana, translated by H. Rushton Fairclough, revised by G. P. Goold, Loeb Classical Library No. 64, Cambridge, Massachusetts, Harvard University Press, 2000. Online version at Harvard University Press. ISBN 978-0-674-99586-4. West, M. L. (1966), Hesiod: Theogony, Oxford University Press. ISBN 0-19-814169-6. West, M. L. (1983), The Orphic Poems, Clarendon Press. ISBN 978-0-19-814854-8. West, M. L. (1988), Hesiod: Theogony and Works and Days, Oxford University Press. ISBN 978-0-19-953831-7. Yasumura, Noriko, Challenges to the Power of Zeus in Early Greek Poetry, A&C Black, 2013. ISBN 9781472519672. External links
 The dictionary definition of Κύκλωψ at Wiktionary
 Media related to Cyclops at Wikimedia Commons
Cyclops - World History Encyclopedia
Harry Thurston Peck, Harpers Dictionary of Classical Antiquities (1898)
Perseus Encyclopedia: Cyclopes
However, the murmur may be inaudible due to the  relatively low pressures in the right side of the heart. A third heart sound may also be present, also heard at the lower sternal border, and increasing in intensity with inspiration.On examination of the neck, there may be giant C-V waves in the jugular pulse. With severe TR, there may be an enlarged liver detected on palpation of the right upper quadrant of the abdomen; the liver may be pulsatile on palpation and even on inspection. Causes
The causes of TR may be classified as  congenital or acquired; another classification divides the causes into primary or secondary. Congenital abnormalities are much less common than acquired. The most common acquired TR is due to right ventricular dilatation. Such dilatation is most often due left heart failure or pulmonary hypertension. Other causes of right ventricular dilatation include right ventricular infarction, inferior myocardial infarction, and cor pulmonale.In regards to primary and secondary causes they are:

Mechanism
In terms of the mechanism of tricuspid insufficiency, it involves the expansion of the tricuspid annulus (fibrous rings of heart). Tricuspid insufficiency is linked to geometric changes of the tricuspid annulus (decreased tricuspid annular release). The leaflets shape are normal but prevented from normal working mechanism due to a distortion of spatial relationships of leaflets and chords. It is also contemplated that the process via which tricuspid regurgitation emerges, is a decrease of contraction of the myocardium around the annulus. Diagnosis
The diagnosis of TR may be suspected if the typical murmur of TR is heard.