Phlebotomy Technician Practice Exam (NCPT/CPT) 2025 – 400 Free Practice Questions to Pass the Exam

The structures in the respiratory system responsible for gas exchange are tiny air sacs that have a large surface area and are surrounded by a dense network of capillaries.

Sign up for Examzify Plus to get an even more detailed explanation of this question and many more.

Deep dive to get an in-depth explanation with more examples and insights.

Unlock additional features, an ad-free experience, and exclusive content designed to help you excel.

Join thousands of learners who are already benefiting from Examzify Plus and taking their preparation to the next level.

Sign up for Examzify Plus to:

• Favorite your preferred questions
• Access your favorites across devices
• Track your progress and performance
• Save your progress and continue later
• and many more features.

Unlock additional features, an ad-free experience, and exclusive content designed to help you excel.

Join thousands of learners who are already benefiting from Examzify Plus and taking their preparation to the next level.