Upper respiratory system

Definition

The upper respiratory system includes the nose, nasal cavity, sinuses, pharynx, and larynx. It is responsible for filtering, warming, and humidifying the air we breathe before it reaches the lower respiratory system.

5 Must Know Facts For Your Next Test

1. Proper nutrition can enhance mucus production in the upper respiratory system to trap pathogens and particulates.
2. Hydration is vital for maintaining mucosal linings in the upper respiratory tract.
3. Antioxidants from fruits and vegetables can reduce inflammation in the upper respiratory passages.
4. Vitamin C aids in maintaining the integrity of epithelial cells lining the upper respiratory tract.
5. A high-sugar diet can exacerbate inflammation and mucus production in the upper respiratory system.

Review Questions

• How does hydration impact the function of the mucosal linings in the upper respiratory system?
• Why are antioxidants important for reducing inflammation in the upper respiratory passages?
• What role does proper nutrition play in enhancing mucus production within the upper respiratory system?

Related terms

Nutrition: The process by which organisms take in and utilize food material to maintain health and growth

Mucus: A slippery secretion produced by, and covering, mucous membranes that traps pathogens and particulates

Antioxidants: Compounds that inhibit oxidation and can protect body cells from damage caused by free radicals