MEDICINE MCQ
RESPIRATORY MEDICINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The nostrils, larynx and trachea are all made primarily of:.
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Cartilage
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Bone.
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Muscle
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Tendons
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Explanation:
Detailed explanation-1: -The nostrils, larynx and trachea are all made primarily of: A. bone.
Detailed explanation-2: -A normal trachea (windpipe) has many rings made of cartilage (a strong and flexible tissue).
Detailed explanation-3: -The trachea is surrounded by 16 to 20 rings of hyaline cartilage; these ‘rings’ are incomplete and C-shaped. Two or more of the cartilages often unite, partially or completely, and they are sometimes bifurcated at their extremities. The rings are generally highly elastic but they may calcify with age.
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