Anal cerci are found: (NSCL 2021)

• Anal cerci are sensory appendages found in many insects, including cockroaches. Here's why they are present in both sexes:
-Sensory Function: Anal cerci are covered in tiny hairs (setae) that detect air currents and vibrations. This helps cockroaches sense approaching predators or other dangers, allowing for a quick escape response.
-Not Related to Reproduction: Unlike some insect appendages that play a role in mating, anal cerci have a primarily sensory function that is equally important for both male and female cockroaches.
-Cockroach Anatomy: These paired structures are located at the rear end of the abdomen in both sexes.

🔑Key Points:
-Anal cerci are present in both sexes at the 10th abdominal segment.
-It detects the vibrations on the ground and in the air.
-Gastric or hepatic caeca are present at the junction of the foregut and midgut.
-They are ring-shaped 6 to 8 blind tubules that store digestive juices.
-Hypopharynx (tongue) lies within the oral cavity.
-It helps in the movement of food in the oral cavity.
-Brood or genital pouch is present in females at the 7th to 9th sterna.
-The genital pouch contains reproductive structures.