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. 2008 May 5;8:35. doi: 10.1673/031.008.3501

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Shape and morphology of the accessory glands in female T. commodus. A single gland (A) is commonly characterized by a complex system of ducts and end lobes, allowing a subdivision of the organ into three regions. The basal region (Region I, D) includes the part of the gland near its orifice, the middle region (Region II, C) the ductal parts, and the apical region (Region III, B) the end lobes. Adjacent to the orifice the gland's epithelium is additionally surrounded by a muscle coat consisting of longitudinal and circular muscle fibres (E).