Question

multiple choice question
which body system maintains fluid balance, absorbs lipids, and protects the body against pathogens?

digestive system
integumentary system
lymphatic system
cardiovascular system

Explanation:

To solve this, we analyze each system:

• Digestive system: Primarily breaks down food, not for fluid balance or pathogen protection in this way.
• Integumentary system: Protects from external damage, not lipid absorption or fluid balance as described.
• Lymphatic system: Maintains fluid balance (returns interstitial fluid to blood), absorbs dietary lipids (via lacteals), and has lymphoid organs that fight pathogens.
• Cardiovascular system: Circulates blood, not lipid absorption or pathogen protection as the main functions here.

Answer:

C. Lymphatic system