| 11. | The plica sublingualis is also prominent.
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| 12. | The plica mediana is usually made of cartilage and attaches the sublingua to the underside of the tongue.
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| 13. | The plica themselves are remnants of the fetal stage of development where the knee is divided into three compartments.
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| 14. | The plica fimbriata is highly developed and specialized in lemurs, and makes up the majority of the sublingua.
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| 15. | Lemurs also have a third eyelid known as a nictitating membrane, whereas most other primates have a lesser developed plica semilunaris.
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| 16. | The pitch indicated by the plica depends on the pitches of the note it is attached to and the note following it.
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| 17. | If the interval between the main notes is a third, then the plica tone fills it in as a passing tone.
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| 18. | These webs, located between each set of digits, are known as skin folds ( interdigital folds or plica interdigitalis ).
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| 19. | The point where the plica sublingualis attaches to the rear floor of the mouth marks the location of the submandibular salivary glands.
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| 20. | The tarsier has a distinct plica mediana and its plicae fimbriatae are large and stick to the entire underside of the tongue.
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