Question

Which of the following is the primary function of the human respiratory system?

• A. To transport oxygen to tissues and carbon dioxide to the lungs.
• B. To remove waste products from the body.
• C. To facilitate digestion and absorption of nutrients.
• D. To maintain homeostasis by regulating blood pH.

Hint:

The respiratory system works in close collaboration with the circulatory system to transport gases. Oxygen is delivered to tissues, and carbon dioxide is removed through breathing.

Answer 1

The Correct Option is A

The human respiratory system's main role is to facilitate gas exchange: taking in oxygen from the air and delivering it to bodily tissues, and removing carbon dioxide, a metabolic byproduct, from tissues to be expelled from the lungs.
- Key components include the nose, trachea, bronchi, and lungs, with alveoli being the primary sites for this exchange.
Therefore, the respiratory system's fundamental purpose is the transport of oxygen to tissues and carbon dioxide to the lungs.