Air is warmed and moistens as it moves through both the mouth and nasal passages. This statement is true.
Further Explanation:
The respiratory system and lungs helps in breathing. When an individual inhaled air they bring oxygen into the body and exhaled out carbon dioxide through the process of exhalation. This exchange of gases referred as respiration. Lungs consist of small alveoli that help in passage of gases. The lungs have small opening which pass less air rather than having large opening which pass more air.
The air enters inside the body by the mouth or nasal cavity. As the air comes inside, it gets moistened and warmed. This is because the air which is entered in the body by the lungs must be vaporized. This air is not harmful for the respiratory tract and its components. The nasal cavity is surrounded by the cilia on the periphery and consists of mucus which keeps the air moist. The solid particles are filtered from the air by the mucus and cilia which also help in warming up the air. The respiratory system comprises delicate tissues that are mainly prevented by the moist air from the damage. As the air enters the nose, the moisture inside it humidifies and heats up the air. This increases the water vapor component of the air inside the nose which eventually reaches the lungs.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Respiratory system
Keyword:
Warmed, moistened, air, mucus, cilia, humidifies, air, nose, lungs, body, respiratory tract, solid particles, filtered, nasal cavity, large opening.
