Q.

The mouthparts of a cockroach are highly specialized and adapted for chewing. They are classified as biting and chewing type. These structures are located at the anterior end of the head and work together to help the cockroach feed on a wide variety of substances.

Components of Cockroach Mouthparts

1. Labrum (Upper Lip): A broad, flattened structure that forms the upper lip, covering the other mouthparts and holding food in place.
2. Mandibles: These are a pair of hard, toothed structures on either side of the mouth. They are responsible for crushing and grinding food.
3. Maxillae: A pair of appendages with sensory palps that help manipulate food and bring it to the mouth.
4. Labium (Lower Lip): It forms the lower lip and includes sensory palps to assist in food handling.
5. Hypopharynx: A tongue-like structure located in the center. It aids in mixing food with saliva for easier ingestion.

Function:

The mouthparts collectively allow the cockroach to chew, crush, and manipulate solid food. The sensory palps also help in tasting and identifying food.