Narva system of periploneta, nervous system of periploneta. So the nervous system of periploneta divides into three types. That is the central nervous system, central nervous system, peripheral nervous system, and atanomas nervous system, central nervous system, peripheral nervous system, atanomas nervous system. So nervous system of periploneta is divided into three types. That is the central nervous system, peripheral nervous system, atanomas nervous system. Now, central nervous system is includes brain, sub-esophagal, sub-esophagal ganglia, and sub-esophagal ganglia, and third one, sub-fourth one, ventral nervous system, ventral nervous. So the brain is surrounded by esophagus, the brain is surrounded by esophagus. Central nervous system includes brain, sub-esophagal ganglia, and esophagal ganglia, ventral narukot. So the brain is surrounded by esophagus, and the brain is divided into three types. So first one is proto-seribrum, proto-seribrum, dutero-seribrum, and third one is tritoceribrum. So the proto-seribrum receives impulse from the, from i by the optic nerves, by the optic nerves. So proto-seribrum receives the impulse from i by the optic nerves, and dutero-seribrum. The dutero-seribrum receives the, and tenel, receives the impulse from the, and tenel nerves, and tritoceribrum receives the impulse from labrum. The nervous system includes central nervous system, peripheral nervous system, atnormous nervous system. The central nervous system consists of the brain, sub-esophagal ganglia, esophagal ganglia, nerve, ventral narukot. So the brain is surrounded by the esophagus, so the brain divides into three types, proto-seribrum, dutero-seribrum, tritoceribrum. The proto-seribrum receives the impulse from i by the optic nerves, and dutero-seribrum, impuls the, receives the impulse from antendolonous, and tritoceribrum receives the impulse from labrum.