What are the three main function of blood and lymph circulation?

The three main functions of blood and lymph circulation are transportation, regulation, and protection. Blood circulates nutrients, oxygen, hormones, and waste products throughout the body, while lymph helps transport immune cells and excess interstitial fluid back to the bloodstream. Additionally, blood plays a crucial role in regulating body temperature and pH levels, while the lymphatic system is vital for immune responses, helping to protect the body against infections and diseases. Together, they maintain homeostasis and overall health.