Kaplan Nursing Entrance Practice Exam

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What is the function of the trachea?

To absorb nutrients
To connect the larynx to the bronchi
To pump blood
To filter air

The correct answer is: To connect the larynx to the bronchi

The trachea, commonly known as the windpipe, serves a crucial role in the respiratory system by connecting the larynx, or voice box, to the bronchi, which are the main passageways into the lungs. This anatomical connection is essential for facilitating the flow of air during inhalation and exhalation, allowing oxygen to reach the lungs and carbon dioxide to be expelled from the body. While the trachea does have additional functions, such as filtering and humidifying the air we breathe, the primary purpose of linking the larynx and bronchi is vital for effective respiration. This connection ensures that the upper respiratory passages can efficiently transfer air to the lower respiratory tract, where gas exchange occurs. Understanding this function is fundamental for recognizing how the body maintains proper respiratory mechanics.