Connexus human respiratory system quiz answers

Answer 1

1. The primary function of the respiratory system is to:
- Provide oxygen to the body and remove carbon dioxide.

2. The structure in the respiratory system responsible for gas exchange between the air and blood is the:
- Alveoli.

3. The correct pathway of air entering the respiratory system is:
- Nose/mouth, trachea, bronchi, bronchioles, alveoli.

4. The diaphragm is a muscle that:
- Contracts and relaxes to help with breathing.

5. Inhalation is the process of:
- Taking air into the lungs.

6. Exhalation is the process of:
- Releasing air from the lungs.

7. The respiratory system is closely connected to the cardiovascular system because:
- The respiratory system helps to oxygenate the blood, which is then circulated throughout the body by the cardiovascular system.

8. The respiratory system is at risk for infections and diseases because:
- The respiratory system is constantly exposed to external pathogens and particles in the air.