1
Question
Salivary glands of cockroach open on
Salivary glands of cockroach open on
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Solution
The correct option is A Labium
Cockroach foregut contains a pair of salivary glands. Each salivary gland is branched, the secretions of all the branches being poured into a common duct. For either pair of salivary glands, there is a thin walled salivary receptacle or reservoir which is like a bladder. It stores the salivary secretions. The receptacles of either side have a common receptaculum duct which opens into the common salivary duct. This common salivary duct opens into the mouth cavity at the labium.
Therefore, the correct answer is option C.
Cockroach foregut contains a pair of salivary glands. Each salivary gland is branched, the secretions of all the branches being poured into a common duct. For either pair of salivary glands, there is a thin walled salivary receptacle or reservoir which is like a bladder. It stores the salivary secretions. The receptacles of either side have a common receptaculum duct which opens into the common salivary duct. This common salivary duct opens into the mouth cavity at the labium.
Therefore, the correct answer is option C.
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