Respiratory system

Definition

The respiratory system is a network of organs and tissues that help you breathe. It includes airways, lungs, and blood vessels which work together to facilitate gas exchange.

5 Must Know Facts For Your Next Test

1. The respiratory system plays a vital role in maintaining acid-base balance in the body.
2. Proper nutrition can support lung function and help manage chronic respiratory diseases.
3. Malnutrition can weaken respiratory muscles and impair lung function.
4. Certain nutrients like antioxidants (vitamins C and E) are essential for protecting lung tissue from oxidative stress.
5. Hydration is crucial for maintaining mucus production, which helps trap and expel pathogens from the respiratory tract.

Review Questions

• What role does proper nutrition play in supporting lung function?
• How can malnutrition affect the respiratory system?
• Why are antioxidants important for pulmonary health?

Related terms

Pulmonary Function Tests:

Diagnostic tests that measure how well the lungs are working by assessing lung capacity, volume, rates of flow, and gas exchange.

Chronic Obstructive Pulmonary Disease (COPD):

A group of progressive lung diseases that obstruct airflow and make it difficult to breathe.

Antioxidants:

Compounds that inhibit oxidation, a chemical reaction that can produce free radicals leading to cell damage.