The trachea is also termed as:
Correct answer: D. Wind pipe
- A. Voice box
- B. Epiglottis
- C. Bronchi
- D. Wind pipe
Explanation
OPTION A: The larynx is an enlargement in the airway at the top of the trachea and below the pharynx. Inside the larynx, two vocal cords are responsible for vocalization. Therefore, the larynx is called the voice box.OPTION B: The larynx is composed primarily of muscles and cartilage. One of the cartilage is the epiglottis.OPTION C: The trachea divides into two stem bronchi, one each for the left and right lung.OPTION D: The trachea is a membranous tube. It consists of dense regular tissue and smooth muscle reinforced with 15-20 C-shaped pieces of cartilage. It is also termed a windpipe. Hence, D is the correct option.
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The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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