Functional morphology of the suckers and teeth of the medicinal leech Hirudo verbana Carena, 1820 (Annelida; Clitellata; Hirudinida): A scanning electron microscope study,Microscopy Research and Technique

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Functional morphology of the suckers and teeth of the medicinal leech Hirudo verbana Carena, 1820 (Annelida; Clitellata; Hirudinida): A scanning electron microscope study
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-07-14 , DOI: 10.1002/jemt.23851
Hüseyin Ayhan ₁ , Nurcan Özyurt Koçakoğlu ₂ , Selami Candan ₂

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In this study, the triple jaws and suckers of the leeches belonging to the Hirudo verbana Carena, 1820 (Annelida; Clitellata; Hirudinida) were examined using the stereomicroscopy and scanning electron microscopy. In H. verbana, suckers are seen on the first annulus and last annulus of the body. The mouth opens in the center of the front suction cup, and behind this opening is a movable triple jaw apparatus with many teeth. The posterior sucker disc consists of the last seven body segments and lacks an opening. The shape of the jaw is trignatous. The pharynx is equally located around of the three muscular jaws. The jaws are muscular covered with cuticle and carry a row of teeth arranged at the tip. In this study, it was determined that secretory canal holes were identified between the teeth. The results show that the size of teeth determines long-term bleeding so revealing the structure and working mechanism of the teeth has importance for medicinal leeches. At the same time, the difference of teeth and jaw structures of leeches may be a criterion in the classification of medicinal leeches.

中文翻译：

药用水蛭吸盘和牙齿的功能形态学，1820（Annelida；Clitellata；Hirudinida）：扫描电子显微镜研究

在这项研究中，使用立体显微镜和扫描电子显微镜检查了属于1820 年水蛭（Annelida；Clitellata；Hirudinida）的水蛭的三口和吸盘。在H . 马鞭草，在身体的第一个环和最后一个环上可以看到吸盘。嘴在前吸盘的中央开口，在这个开口的后面是一个带有许多牙齿的可移动的三爪装置。后吸盘由最后七个体节组成，没有开口。下巴的形状是三角的。咽部位于三个肌肉发达的颌骨周围。颌部肌肉发达，覆盖着角质层，并在尖端排列着一排牙齿。在这项研究中，确定在牙齿之间发现了分泌管孔。结果表明，牙齿的大小决定了长期出血，因此揭示牙齿的结构和工作机制对药用水蛭具有重要意义。同时，

更新日期：2021-07-14

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