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Question
The mouth part of cockroach which is compared to tongue is
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Solution
The correct option is A Hypopharynx
There are five different structures in the mouth of cockroach which are used for the initial collection and processing of food - Labrum - a cover which may be loosely referred to as the upper lip.
- Mandibles - hard, powerful cutting jaws.
- Maxillae - 'pincers' which are less powerful than the mandibles. They are used to steady and manipulate the food. They have a five segmented palp which is sensory and often concerned with taste.
- Labium - the lower cover, often referred to as the lower lip. It actually represents the fused pair of ancestral second maxillae. They have a three segmented palp which is also sensory.
- Hypopharynx - a tongue-like structure in the floor of the mouth. The salivary glands discharge saliva through it.
There are five different structures in the mouth of cockroach which are used for the initial collection and processing of food
- Labrum - a cover which may be loosely referred to as the upper lip.
- Mandibles - hard, powerful cutting jaws.
- Maxillae - 'pincers' which are less powerful than the mandibles. They are used to steady and manipulate the food. They have a five segmented palp which is sensory and often concerned with taste.
- Labium - the lower cover, often referred to as the lower lip. It actually represents the fused pair of ancestral second maxillae. They have a three segmented palp which is also sensory.
- Hypopharynx - a tongue-like structure in the floor of the mouth. The salivary glands discharge saliva through it.
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