Which systems help to adjust the blood's acid-base balance?

• A. Circulatory and lymphatic systems
• B. Respiratory and renal systems
• C. Nervous and muscular systems
• D. Digestive and endocrine systems

Answer: (B)

Verified step by step guidance

1. Understand the concept of acid-base balance: The body's acid-base balance is crucial for maintaining homeostasis, which is the stable condition of an organism and its internal environment.
2. Identify the primary systems involved: The respiratory and renal systems are the main systems that regulate the acid-base balance in the body.
3. Explore the role of the respiratory system: The respiratory system helps regulate the acid-base balance by controlling the levels of carbon dioxide (CO2) in the blood. When CO2 levels rise, it forms carbonic acid, which lowers the pH of the blood. The respiratory system can increase or decrease the rate of breathing to adjust CO2 levels.
4. Examine the role of the renal system: The kidneys in the renal system help maintain acid-base balance by excreting hydrogen ions (H+) and reabsorbing bicarbonate (HCO3-) from urine. This process helps to neutralize excess acids in the blood.
5. Consider why other systems are not primarily involved: While other systems like the circulatory, lymphatic, nervous, muscular, digestive, and endocrine systems have various roles in the body, they do not directly regulate the acid-base balance as the respiratory and renal systems do.