Alveolar sacs

Definition

Alveolar sacs are clusters of alveoli, the tiny air-filled sacs in the lungs where gas exchange occurs. They play a critical role in oxygenating blood and removing carbon dioxide from the body.

5 Must Know Facts For Your Next Test

1. Alveolar sacs are essential for efficient gas exchange, which is vital for cellular respiration.
2. Nutrition can influence the health and functionality of alveolar sacs by affecting lung tissue integrity and inflammation levels.
3. Essential fatty acids and antioxidants can support alveolar sac function by reducing oxidative stress.
4. Malnutrition or deficiencies in key nutrients can impair respiratory muscle function, indirectly stressing alveolar sacs.
5. Chronic inflammation from poor nutrition can lead to diseases like Chronic Obstructive Pulmonary Disease (COPD), affecting alveolar sac efficiency.

Review Questions

• What role do alveolar sacs play in gas exchange?
• How can nutrition impact the health and functionality of alveolar sacs?
• Which nutrients are particularly beneficial for supporting alveolar sac function?

Related terms

Alveoli:

Small air-filled spaces in the lungs where oxygen and carbon dioxide are exchanged with blood.

Pulmonary System: The system of organs involved in breathing, including the lungs, trachea, bronchi, and diaphragm.

Oxidative Stress:

An imbalance between free radicals and antioxidants in the body, which can damage cells including those in the lungs.