OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Epithelial cells found on the inside of the trachea (windpipe) have tiny structures called ____ to trap dust and bacteria.
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Hairs
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Cilia
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Villi
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None of the above
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Explanation:
Detailed explanation-1: -Mucosa have cells called goblet cells. Goblet cells produce a sticky substance called mucus. When you inhale, the mucus traps dust or other small debris to keep it from traveling to your lungs. In the trachea’s inner layer, you have small, hair-like structures called cilia.
Detailed explanation-2: -Scattered throughout the cilia are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms.
Detailed explanation-3: -The trachea is also lined with cilia, which sweep fluids and foreign particles out of the airway to keep them out of the lungs. Further down, the trachea divides into two tubes (left and right) called bronchi (BRAHN-kye).
There is 1 question to complete.