Male reproductive system
1.
In cockroach, sexes are separate.
2. In cockroach sexual dimorphic characters are indistinct.
3. Females are broader than the male and absence of anal style.
4. Male reproductive system of cockroach consists of a pair of testes
5. Testis are lying on either side of ventral nerve cord lateral side in the 4th -6th
abdominal segments.
6. Each testis is tri-lobed structure.
7. From each testis arises a thin vas deferens, which opens into ejaculatory duct
through seminal vesicle. The ejaculatory duct opens into male gonopore situated
ventral to anus.
8. A characteristic mushroom shaped gland is present in the 6th-7th abdominal
segments which functions as an accessory reproductive gland.
9. The external genitalia are represented by male gonapophysis or phallomere
(these are chitinous asymmetrical structures, surrounding the male gonopore).
10. The sperms are stored in the seminal vesicles and are glued together in the form
of bundles called spermatophores
11. The sperms are discharged during copulation.
2. In cockroach sexual dimorphic characters are indistinct.
3. Females are broader than the male and absence of anal style.
4. Male reproductive system of cockroach consists of a pair of testes
5. Testis are lying on either side of ventral nerve cord lateral side in the 4th -6th
abdominal segments.
6. Each testis is tri-lobed structure.
7. From each testis arises a thin vas deferens, which opens into ejaculatory duct
through seminal vesicle. The ejaculatory duct opens into male gonopore situated
ventral to anus.
8. A characteristic mushroom shaped gland is present in the 6th-7th abdominal
segments which functions as an accessory reproductive gland.
9. The external genitalia are represented by male gonapophysis or phallomere
(these are chitinous asymmetrical structures, surrounding the male gonopore).
10. The sperms are stored in the seminal vesicles and are glued together in the form
of bundles called spermatophores
11. The sperms are discharged during copulation.
