Question
The level of angle in case of structure marked as “B” in the picture below is?
Show Answer
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Correct Answer » B
Explanation
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Ans;B. T4
The structure marked as “B” in the picture above represents carina of trachea.
- The carina is a ridge of cartilage in the trachea that occurs between the division of the two main bronchi.
- This occurs at the lower end of the trachea (usually at the level of the 4th thoracic vertebra , which is in line with the sternal angle , but may raise or descend up to two vertebrae higher or lower with breathing).
- This ridge lies to the left of the midline, and runs antero-posteriorly (front to back). Foreign bodies that fall down the trachea are more likely to enter the right bronchus.
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