Explain the reproductive system of a female cockroach.

(N/A) The female reproductive system of a cockroach consists of two large ovaries,lying laterally in the $2^{nd}$ to $6^{th}$ abdominal segments.
Each ovary is formed of a group of $8$ ovarian tubules or ovarioles,containing a chain of developing ova.
Oviducts of each ovary unite into a single median oviduct (also called vagina) which opens into the genital chamber.
$A$ pair of spermathecae is present in the $6^{th}$ segment which opens into the genital chamber.
Sperm are transferred through spermatophores.
The female genital pore,spermathecal pores,and collateral glands are all associated with the genital pouch or brood pouch,which is formed by the $7^{th}, 8^{th},$ and $9^{th}$ abdominal sterna.