👉 An essential fluid, often referred to as blood, is a complex and vital component of the circulatory system. It transports oxygen, nutrients, hormones, and waste products throughout the body, playing a crucial role in maintaining homeostasis. Composed mainly of water, red blood cells, white blood cells, platelets, and plasma, it facilitates cellular respiration, immune responses, and the removal of metabolic waste. Blood also helps regulate body temperature and pH levels, making it indispensable for overall health and bodily functions.
