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1. Long tubules/Urecose glands - they are present at the periphery and store uric acid. Its secretion forms the inner layer of spermatophores. 2. Small tubules - they are present in the centre and provide nourishment to the sperms. 3. Seminal vesicle - it is present in the anterior part of ejaculatory duct. In the seminal vesicle, sperms are stored and glued together in the form of spermatophores which are discharged during copulation. Ejaculatory duct (single): Seminal vesicles form a single ejaculatory duct which opens into male gonopore which lies on the ventral side of the anus. male genital pore Phallic gland or conglobate gland: It is present beneath the utricular gland and forms a phallic duct which near the male gonopore on left phallomere. Its secretion forms the outermost layer of spermatophores. opens External genitalia or gonapophyses or phallomeres: There are 3 asymmetrical chitinous structures that surround the male gonopore. They are right, left and lateral phallomeres. Pseudopenis and titillator are the parts of left phallomere. These structures help in copulation to transfer the spermatophores. gonopophysee also consists of anal/ caudal style Genital pouch or chamber: In males, genital pouch or chamber is present at the posterior part of the abdomen. It is covered dorsally by terga of 9th and 10th segment and ventrally by the sternum of 9th segment. It possesses dorsal anus, ventral male genital pore and gonapophysis (or phallomeres). Reproductive system of female cockroach: It shows the following parts: Spermatheca Ovary Oviduct Common oviduct or vagina Collaterial glands openinge in genital chamber in female gonopone (1) spermatheca (ii) collaterial glande gonapophyses Genital chamber Genital pouch Vestibulum Female reproductive system of cockroach Ovaries: One pair of large ovaries are located laterally in the 2nd to 6th abdominal segments. Each ovary is formed of a group of 8 ovarian tubules or ovarioles, in which the chain of developing ova/eggs are arranged in a linear manner.