Name: Anatomy of the Bone
Uploaded: 2019-07-19
Duration: 4 min 14 s
Description: The adult human body has 206 bones, and our arms are the most commonly fractured ones, responsible for nearly half of all adult fractures. Study the bone ana...

Question

Describe biting and chewing type of mouthparts by taking example of cockroach.

Accepted Answer

Cockroaches are included in class Insecta of phylum Arthropoda. They are nocturnal omnivores that live in damp places throughout the world. They act as serious pest and vector of several diseases. The body of cockroach is divided into head, thorax and abdomen. The head bears a pair of long antennae, a pair of ocelli or fenestrae, a pair of compound eyes and mouth parts.

The mouthparts of cockroach consist of labrum (upper lip), labium (lower lip), a pair of maxillae (a segmented and resemble a leg), a pair of mandibles and hypopharynx (tongue). The main structures of mastication are mandibles which are short with grinding teeth. Hence, the mouthparts of cockroach are biting and chewing type (mandibulate type). Single salivary duct opens at the base of hypopharynx, and so it resembles the tongue. The following diagram shows the mouthparts of cockroach:

Describe biting and chewing type of mouthparts by taking example of cockroach.

Important Questions on Structural Organisation In Animals

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