The terga, sterna and pleura of cockroach body are joined by

• cementing glue

• muscular tissue

• arthrodial membrane

• arthrodial membrane

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arthrodial membrane

Terga (dorsal sclerites), sterna (ventral sclerites and pleura (lateral sclerites are joined together by soft, colourless and flexible membrane called arthrodial membrane also known as intersegmental membrane.
It is also seen at the base of sensory hairs wings etc.