Question

Which of the following is an organ of mastication in the cockroach?

• A. Labrum
• B. Labium
• C. Mandibles
• D. Maxilla

Answer 1

The correct option is C Mandibles

• The labrum is the upper lip, while the labium is the lower lip.
• Maxillae are used for cleaning and holding the food.
• Mandibles are provided with teeth-like structures and are used to masticate the food, which helps in easy digestion.
• Abductor and adductor muscles associated with the mandibles move these in a horizontal plane to cut and chew the food particles that are brought in between the mandibles by the first maxillae.

So, the correct answer is option C.