Lower respiratory tract

Definition

The lower respiratory tract includes the trachea, bronchi, and lungs, which are essential for gas exchange. It plays a critical role in oxygenating blood and removing carbon dioxide from the body.

5 Must Know Facts For Your Next Test

1. Malnutrition can weaken respiratory muscles and impair lung function.
2. Adequate protein intake is crucial for maintaining respiratory muscle strength.
3. Antioxidants like vitamins A, C, and E support lung health by reducing oxidative stress.
4. Chronic pulmonary diseases such as COPD often result in increased energy expenditure due to labored breathing.
5. Hydration is vital to maintain mucus viscosity and facilitate effective airway clearance.

Review Questions

• How does malnutrition affect the function of the lower respiratory tract?
• Why is protein intake important for patients with chronic pulmonary illnesses?
• What role do antioxidants play in maintaining pulmonary health?

Related terms

Trachea: The windpipe that connects the larynx to the bronchi, allowing air passage to the lungs.

Bronchi: The main passageways into the lungs that branch off from the trachea.

COPD:

A group of chronic lung diseases that cause obstructed airflow and breathing difficulties.