Explain the head of a cockroach.

(N/A) $\rightarrow$ The head of a cockroach is triangular in shape and lies anteriorly at right angles to the longitudinal body axis.
$\rightarrow$ It is connected to the thorax by a short,thin,and flexible neck.
$\rightarrow$ The head is formed by the fusion of six embryonic segments.
$\rightarrow$ The head capsule bears a pair of large,sessile,compound eyes. These are bean-shaped.
$\rightarrow$ $A$ pair of thread-like antennae arise from membranous sockets lying in front of the eyes. These antennae contain sensory receptors that help in monitoring the environment.
$\rightarrow$ The anterior end of the head bears appendages that form biting and chewing type of mouthparts,which include the labrum,a pair of mandibles,a pair of maxillae,and the labium.