👉 The sep fluid, also known as serous fluid, is a clear, watery substance produced by serous membranes in the body, primarily in the lungs and eyes. It serves as a lubricant, reducing friction between these membranes during movement, such as breathing and eye blinking. This fluid also plays a crucial role in maintaining the structural integrity of serous cavities and facilitating the exchange of nutrients and waste products between cells and tissues. Additionally, it helps in protecting the underlying tissues from mechanical damage and supports the immune response by carrying antibodies and immune cells.
