Structural-Organizationstructural-Organization-In-Animals-3

Cockroach Morphology -Adults cockroach are about 34-53 mm long with wings -Body divided into head, thorax and abdomen -Body divisible into segments and some -segment fuses in adult stage -Body is covered by hard chitinous exoskeleton -Exoskeleton of chitin plates occurred in each segment -Chitin plate called sclerites -Sclerites joined each other by membrane called arthrodial membrane -Sclerites of dorsal side- tergum or tergite -Sclerites of lateral side - pleura or pleuritis

Number of segment present in adult cockroach and embryo

Body Head Thorax Abdomen Total Segment
Embryo 6 3 11 20
Adult 1 3 10 14