1. The radula is unicuspid and the radular dentition is of the rhipidoglossate type. 2. This principle applies to tricuspid valves as well as bicuspid or unicuspid aortic valves. 3. The teeth of breeding males are unicuspid and elongated when compared to the shorter bicuspid teeth of the females. 4. Commonly the unicuspid valve is changed into a bicuspid configuration; the resulting valve function will be close to normal. 5. Trowbridge's shrew can be distinguished from closely related shrews by the third unicuspid being smaller than the fourth. 6. Because of the unicuspid form of the valve the repair concept will be similar to that of the regurgitant unicuspid valve. 7. Because of the unicuspid form of the valve the repair concept will be similar to that of the regurgitant unicuspid valve. 8. The median teeth are small, and are clearly unicuspid ( having one cusp ), though they are slightly shouldered. 9. The radula contains a small unicuspid central tooth with single sharp laterals ( formula : 1-1-1 ). 10. The unicuspid aortic valve may not only result in relevant stenosis ( narrowing ), it may also primarily lead to regurgitation.
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