Name the blood vessel that arises from the first chamber of the heart in a cockroach.

Describe the respiratory system of a cockroach.

Which of the following statement$(s)$ is/are correct regarding the respiratory system of a cockroach?
$(i)$ It consists of a network of trachea that open through $12$ pairs of small holes called spiracles present on the lateral side of the body.
$(ii)$ Thin branching tubes carry oxygen from the air to all the parts.
$(iii)$ The opening of the spiracles is regulated by sphincters.
$(iv)$ Exchange of gases takes place at the tracheoles by diffusion.

Choose the correct sequence of the alimentary canal of a cockroach.

Explain the nervous system of a cockroach.

Which of the following is not a part of the digestive system of a cockroach?