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Q How many "C"-shaped cartilaginous rings are present in the trachea?

ID: #10011 Respiratory system 132 views
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#10011Q ID
EasyDifficulty
Respiratory systemTopic
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  • A 5-10 ✔ ✖
  • B 10-15 ✔ ✖
  • C 16-20 ✔ ✖
  • D 20-25 ✔ ✖
Correct Answer: Option C

Explanation

The trachea, also known as the windpipe, is a tube-like structure that connects the larynx to the bronchi of the lungs. It is made up of 16-20 "C"-shaped cartilaginous rings that provide structural support and prevent the trachea from collapsing. The incomplete "C" shape allows the trachea to expand and elongate during inhalation and exhalation, respectively. The rings are positioned in the anterior and lateral walls of the trachea, and the posterior part is formed by smooth muscle and fibrous tissue. The cartilaginous rings also keep the trachea open during the pressure changes that occur during breathing.

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