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The Relationship of Two-Point Discrimination Threshold and the Number of Fungiform Papilla According to Anatomical Location of Tongue

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ÇãÀ±°æ ( Hur Yun-Kyung ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
ÃÖÀç°© ( Choi Jae-Kap ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç

Abstract

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¹æ¹ý: ÇöÀç º¹¿ë ÁßÀÎ ¾à¹°ÀÌ ¾ø°í, °ú°Å Àå±â°£ ¾à¹°À» º¹¿ëÇÑ °æÇèÀÌ ¾ø¾úÀ¸¸ç, Àü½ÅÁúȯÀÌ ¾ø´Â °Ç°­ÇÑ ³²³à 13¸í(Æò±Õ ¿¬·É 30¡¾3¼¼)À» ´ë»óÀ¸·Î ÇôÀÇ ¼öÃʼº A¥ä ¼¶À¯¿Í ¹«¼öÃʼº C ¼¶À¯¿Í °ü·ÃÇÑ ÃË°¢½Äº°´ÉÀ» ¾Ë¾Æº¸±â À§Çؼ­ Castroviezo caliper¢ç ¸¦ ÀÌ¿ëÇÑ µÎÁ¡½Äº°°Ë»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. ½É»óÀ¯µÎÀÇ °³¼ö´Â methylene blue·Î Çô¸¦ ¿°»öÇؼ­ ½É»óÀ¯µÎ¸¦ È®ÀÎÇÏ¿© °³¼ö¸¦ ¼¼¾ú´Ù.

°á°ú: 1. ÇôÀÇ Àü¹æºÎ¿Í ÈÄÃø¹æºÎÀ§ÀÇ ½É»óÀ¯µÎ°³¼ö¸¦ ¼¼¾î º» °á°ú, ³²ÀÚ´Â Àü¹æ°ú ÈÄÃø¹æÀÌ °¢°¢51.69¡¾14.15°³, 12.92¡¾6.13°³¿´À¸¸ç, ¿©ÀÚ´Â 58.85¡¾13.56°³, 16.23¡¾6.38°³¿´´Ù. ³²³à ¸ðµÎ ÈÄÃø¹æ¿¡ ºñÇØ Àü¹æºÎ¿¡¼­ À¯µÎÀÇ °³¼ö°¡ 3¹è ÀÌ»ó ¸¹Àº °ÍÀ» °üÂûÇÒ ¼ö°¡ ÀÖ´Ù. 2. µÎ Á¡À¸·Î ½Äº°Çس»´Â ÃÖ¼ÒÇÑÀÇ °Å¸®´Â Àü¹æ¿¡¼­ Æò±Õ 1.91¡¾0.74mm ¿´À¸¸ç, ¼ºº°¿¡ µû¶ó ³ª´² ´Ù½Ã ºÐ·ùÇßÀ» ¶§, ³²ÀÚÀÇ ÀÎ½Ä ¿ªÄ¡°¡ ³ôÀº °ÍÀ¸·Î °üÂûµÇ¾úÀ¸³ª, ¼ºº°¿¡ µû¸¥ Åë°èÀû À¯ÀǼºÀº ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. 3. µÎÁ¡½Äº°°Å¸®¸¦ ±âÁØÀ¸·Î ³× °³ÀÇ ±×·ìÀ¸·Î ³ª´©¾úÀ» ¶§, °Å¸®°¡ Áõ°¡ÇÒ¼ö·Ï ½É»óÀ¯µÎÀÇ °³¼ö°¡ °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. ±×·¯³ª, µÎÁ¡ÀÎÁö¿ªÄ¡¿Í ½É»óÀ¯µÎÀÇ °³¼ö °£¿¡ Åë°èÀû À¯ÀǼºÀº ¾ø¾ú´Ù.

The lingual branch of the trigeminal nerve transmitts general sensation from anterior two thirds of the tongue, also bearing within sheath fibers of chordal tympani branch of the facial nerve. Chorda tympani nerve carries special taste sensations from the anterior two thirds of the tongue and sub-serves the existing trigeminal pathway. Chorda tympani nerve and the lingual nerve innervate to fungiform papilla and distribution of fungiform papilla on tongue dorsum is variable according to anatomical location. The purpose of this report is to assess that the relationship of the number of fungiform papilla and the ability of two-point discrimination of tongu dorsum. Twenty-six healthy students(male:female=13:13) whose mean age was 30¡¾3 participated in our study. Two-point discrimination thresholds were measured to evaluate the spatial acuity of touch sensation. The measurement was carried out at the tip and posterolateral region of dorsal tongue. After two-point discrimination test, we took the pictures of their dorsal tongue dyed with methylene blue with digital camera. There were no significant differences between the number of fungiform papilla and the two-point discrimination threshold. But, we found that there were the intraregional and intersubject variations of spatial acuity of the tongue. During the test on the posterolateral region of the dorsal tongue, students appealed the difficulty of discrimination of one point and two point.

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Tactile sensation;Tongue;Two-point discrimination test;Fungiform papilla

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