1. Blood: Blood is a fluid that circulates throughout the body, carrying oxygen, nutrients, hormones, and waste products. It is composed of plasma, red blood cells, white blood cells, and platelets.
2. Interstitial fluid: Interstitial fluid is the fluid that surrounds cells and tissues. It provides a medium for the exchange of nutrients and waste products between cells and the bloodstream.
3. Lymph: Lymph is a fluid that circulates through the lymphatic system, which is a network of vessels and tissues that helps to remove waste products and fight infection. Lymph is similar to blood plasma, but it contains fewer proteins and a higher concentration of white blood cells.
4. Cerebrospinal fluid: Cerebrospinal fluid is a clear fluid that surrounds the brain and spinal cord. It helps to protect the brain and spinal cord from injury and provides a medium for the exchange of nutrients and waste products between the brain and the bloodstream.
5. Synovial fluid: Synovial fluid is a thick, viscous fluid that lubricates joints and reduces friction between bones.
6. Pleural fluid: Pleural fluid is a thin layer of fluid that separates the lungs from the chest wall.
7. Peritoneal fluid: Peritoneal fluid is a thin layer of fluid that separates the abdominal organs from the abdominal wall.
Each of these body fluids plays a vital role in maintaining homeostasis and supporting various physiological processes in the body.