Give the location of hepatic caeca in a cockroach. What is their function ?
$\Rightarrow$ Caecum or hepatic collum are $6-8$ narrow, hollow and closed tubules. They are present at the connection of foregut and midgut. Caecum are like liver of invertebrates. They secrete digestive juices and help in digestio
The figure given below shows the alimentary canal of cockroach with few structures labelled as $1,2,3$ and $4 .$ Identify the correct identification of the structure which is also called proventriculus and helps in grinding the food particles.
In cockroach, which of the following is the principal motor centre?
Respiratory pigment in cockroach is
Identify $X$ the from the figure.
Mention the function of the following
Malpighian tubules