Diagram of fleshy fun bridge6/13/2023 ![]() ![]() This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. ![]() Necessary cookies are absolutely essential for the website to function properly. The segment is called tail or anal segment or pygidium. The last segment is elongated, devoid of Para podia and bears a pair of long, ventrally placed anal cirri and the anus. On the ventral side of the body, laterally and close to the base of each Para podium a minute opening, the excretory pore or nephridiopore is present.ġ1. The Para podia of the mid-body segments are largest and decrease in size towards both the anterior and posterior ends.ġ0. The two acicula constitute the endoskeleton of the Para podium and serve to support and for attachment of the setal muscles.ĩ. A stout, straight, thick and dark coloured chitinous rod called aciculum, deeply embedded in the Para podium is present in the middle of each bundle of setae. The setae are moved by strands of muscle fibres present in the Para podium. Both the noto and neuropodium have a bundle of bristle-like setae or chaetae, lodged in setigerous or chaetigerous sac formed by the invagination of the epidermis. A similar structure, ventral cirrus is present on the ventral margin of the neuropodium. ![]() The dorsal margin of the notopodium is produced into a short, cylindrical, tactile appendage, the dorsal cirrus. Each blade is further subdivided into two lobes, an upper and a lower. A Para podium is a biramous appendage consisting of an upper or dorsal blade, the notopodium and a lower or ventral blade, the neuropodium. ![]()
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