👉 The five fluids in the human body are blood, lymph, interstitial fluid, cerebrospinal fluid, and synovial fluid. Blood is a complex fluid composed mainly of water, red blood cells, white blood cells, and platelets, serving as the body's transport system for oxygen, nutrients, hormones, and waste products. Lymph is a clear fluid that circulates through the lymphatic system, aiding in immune function by carrying white blood cells and removing toxins and excess fluid from tissues. Interstitial fluid fills the spaces between cells, facilitating nutrient exchange and waste removal. Cerebrospinal fluid, a clear, colorless liquid surrounding the brain and spinal cord, protects these structures from mechanical injury and maintains a stable chemical environment. Lastly, synovial fluid lubricates joints, reducing friction between bones and allowing smooth movement.
