👉 A sensitive fluid, often referring to a type of biological fluid that is highly responsive to changes in its environment or internal conditions, plays a crucial role in various physiological processes. This fluid typically includes components like cerebrospinal fluid (CSF) and synovial fluid, which provide essential functions such as cushioning, nutrient delivery, waste removal, and maintaining homeostasis. For instance, CSF protects the brain and spinal cord by acting as a shock absorber, while synovial fluid lubricates joints, reducing friction and facilitating smooth movement. The sensitivity of these fluids means they can quickly adapt to alterations in pressure, temperature, or chemical composition, making them vital for maintaining health and responding to potential threats.