NEETZoologyStructural Organisation in Animals
Which of the following statements correctly describes the hindgut of a cockroach?
Options
- AIt is narrower than the midgut and is differentiated into ileum, colon and rectum.
- BIt is broader than the midgut and is differentiated into ileum, colon and rectum.
- CIt is broader than the midgut and is differentiated into colon, ileum and rectum.
- DIt is narrower than the midgut and is differentiated into colon, ileum and rectum.
Correct answer
B. It is broader than the midgut and is differentiated into ileum, colon and rectum.
Step-by-step solution
The alimentary canal of a cockroach is divided into foregut, midgut, and hindgut. Morphologically, the hindgut is broader than the midgut. Anatomically, the hindgut is differentiated into three distinct regions in an anterior to posterior sequence: the ileum, followed by the colon, and ending in the rectum. Options stating the hindgut is narrower than the midgut are incorrect. Options that alter the sequence of the parts (such as placing the colon before the ileum) are also incorrect. Answer: It is broader than the