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Kingdom: Animalia Phylum: Nematoda Class: Secernentea Order: Ascaridida Family: Ascarididae Genus: genus genus Ascaris Linnaeus, 1758 Species Ascaris lumbricoides(human intestinal roundworm) Ascaris suum(pig intestinal roundworm) Morphology masculine: It is virtually 20-30 cm in length presents rear hold on stro ngly cut towards the ventral surface Female: It is approximately 30-40 cm i n length presents rear end rectilineal Reproductive system in Ascaris lumbricoides Sexes argon discriminate and there is a hale distinct fetch upual dimorphism. I. manly Reproductive System The male productive organs are : 1. Testis. The musket ball is a long thin, coil and thread-like structure in the anterior recess of pseudococl. It represents monorchic condition (presence of iodin testis) and telogonic mode of rise of germ cells (i.e. germ cells developing nevertheless from the proximal relegate of gonad). The testis can be tell into three part:- (a) anterior s olid part consisting of sex cell, (b) middle part and (c) posterior part. The central axis of the render is in the realise of a solid cytoplasmic rachis, somewhat which the clusters of amoeboid sperms in various stages of development. Testis is continued posteriorly into the watercraft deferens. 2. Vas deferens.

The vas deferens is as wide as the testis and the two cannot be marked externally. It is very short and leads into the originative vesicle. 3. Vesicula seminal. The vesicular seminalis is a wide tube present in the posterior l/3rd part of the body. It joins the ejaculatory duct. 4. Ejaculatory duct. It is a sh ort, abbreviate but sizeable tube opening ! into the sewerage, which leads outside by cloacal opening. 5. Penial sacs with penile setae. On the dorsal side of the cloaca there is a pair of sac-like structures called penial sacs. These are organize by evaginations of the cloaca. severally pouch secretes and lodges a club- shaped spicule or penial seta. The spicula is enclosed in a guinea pig and consists of a cytoplasmic core surrounded by thick...If you postulate to countenance a full essay, order it on our website: OrderCustomPaper.com

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