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Apices of the lungs. The apex of the lung starts at C7. Which of the following describes the apex of the lung?

A. The lowest part of the lung
B. The middle part of the lung
C. The uppermost part of the lung
D. The main bronchus

Answer :

Final answer:

The apex of the lung is the uppermost part, beginning at around the seventh cervical vertebra (C7). Each lung is composed of smaller units called lobes, and structures within the lungs facilitate the exchange of gases with the atmosphere.

Explanation:

The apex of the lung refers to the uppermost part of the lung. The lungs are pyramid-shaped organs that are connected to the trachea by the right and left bronchi. The apex of each lung extends towards the neck and begins at approximately the level of the seventh cervical vertebra (C7), making it the superior region of the organ. However, it is important to note that the anatomy of your lungs includes more than just the apex. Each lung is composed of smaller units called lobes separated by fissures. The right lung contains three lobes (superior, middle, and inferior) and the left lung has two (superior and inferior). Structures within the lungs, like the bronchi and alveoli, play crucial roles in the primary function of the lungs, which is to perform the exchange of oxygen and carbon dioxide with air from the atmosphere.

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