PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Always get into the water
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Live near the water source
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Secrete mucus
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Use their saliva
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Detailed explanation-1: -Mucosal glands secrete mucus to maintain the moisture, permeability and elasticity of the skin, all of which are necessary for amphibian homeostasis (2, 9, 44).
Detailed explanation-2: -When the frog is out of the water, mucus glands in the skin keep the frog moist, which helps absorb dissolved oxygen from the air. A frog may also breathe much like a human, by taking air in through their nostrils and down into their lungs.
Detailed explanation-3: -Among amphibians, two basic types of cutaneous glands are present: mucous glands and poison glands. The mucous glands, in the form of typical acini, contain a characteristic lumen and secrete hydrophilic mucus that keeps the skin moist, facilitating gas exchanges1, 5, 9, 10.