Read the following statements regarding the alimentary canal of cockroach: A. The crop is followed by the gizzard or proventriculus. B. The entire foregut is lined by cuticle. C. A ring of 6-8 blind tubules called hepatic caeca is present at the junction of midgut and hindgut. D. The hindgut is broader than the midgut and is differentiated into ileum, colon and rectum. How many of the above statements are correct?

Step-by-step solution

Statement A is correct: In the foregut, the crop is followed by the gizzard or proventriculus. Statement B is correct: The entire foregut of the cockroach is lined by cuticle. Statement C is incorrect: A ring of 6-8 blind tubules called hepatic or gastric caeca is present at the junction of the foregut and midgut, not the midgut and hindgut. The junction of the midgut and hindgut bears Malpighian tubules. Statement D is correct: The hindgut is broader than the midgut and is differentiated into three parts: ileum, c