What organs play a key role in maintaining fluid homeostasis?

• A. Heart and Liver
• B. Kidneys and Skin
• C. Stomach and Intestines
• D. Lungs and Blood Vessels

Answer: (B)

The kidneys and skin are essential organs in maintaining fluid homeostasis in the body. The kidneys regulate fluid balance by filtering blood, removing excess water and waste through urine, and conserving water when necessary. They play a crucial role in controlling electrolyte levels and blood pressure, which are vital for maintaining overall fluid balance.

The skin also contributes to fluid homeostasis through its role in regulating body temperature and preventing excessive water loss. It acts as a barrier to protect against dehydration by retaining moisture and preventing trans-epidermal water loss. Sweat glands in the skin help with temperature regulation but also play a role in fluid balance by excreting water and electrolytes during perspiration.

In summary, the kidneys filter and balance fluids and electrolytes while the skin helps retain moisture and regulate temperature, making these organs fundamental to maintaining fluid homeostasis in the body.