Arrange the parts of alimentary canal of cockroach in correct order : I. Stomodaeal valve. II. Crop. III. Ileum. IV. Proventriculus. V. Mesenteron, VI. Colon.
The correct option is C II, IV, I, V, III, VI
The alimentary canal of a cockroach is having three parts, foregut, midgut, and
hindgut. Whereas the alimentary canal is divided into three main portions.
These are Foregut, which consists of a mouth surrounded by mouthparts. The
mouth cavity is the pharynx. It continues as the oesophagus and further the canal
enlarges into the crop which is thin-walled. The crop opens into short,
muscular organs, the gizzard, or proventriculus. The midgut is found at the
junction of the gizzard and the stomach is valves called the stomodael valves.
The midgut forms the mesenteron. It consists entirely of the stomach and
ventriculus. The hindgut is a coiled structure. It consists of the anterior ileum,
middle colon, and posterior rectum.
Thus, the correct answer is an option (C).
The alimentary canal of a cockroach is having three parts, foregut, midgut, and hindgut. Whereas the alimentary canal is divided into three main portions. These are Foregut, which consists of a mouth surrounded by mouthparts. The mouth cavity is the pharynx. It continues as the oesophagus and further the canal enlarges into the crop which is thin-walled. The crop opens into short, muscular organs, the gizzard, or proventriculus. The midgut is found at the junction of the gizzard and the stomach is valves called the stomodael valves. The midgut forms the mesenteron. It consists entirely of the stomach and ventriculus. The hindgut is a coiled structure. It consists of the anterior ileum, middle colon, and posterior rectum.
Thus, the correct answer is an option (C).
