Interstitial fluid is located where?

Interstitial fluid is located where?

• A. Inside blood vessels
• B. Between cells in tissues
• C. Within cells
• D. In lymphatic vessels

Answer: (B)

Interstitial fluid is the fluid that surrounds and bathes the cells in the spaces between them. It’s part of the extracellular fluid and comes from plasma that leaks out of capillaries, helping deliver nutrients to cells and remove waste. This fluid is distinct from intracellular fluid, which is inside the cells, and from plasma, which remains within blood vessels. It’s also not the fluid inside lymphatic vessels; once interstitial fluid enters lymph capillaries, it becomes lymph. So the fluid located between cells in tissues is the interstitial fluid.

Interstitial fluid is the fluid that surrounds and bathes the cells in the spaces between them. It’s part of the extracellular fluid and comes from plasma that leaks out of capillaries, helping deliver nutrients to cells and remove waste. This fluid is distinct from intracellular fluid, which is inside the cells, and from plasma, which remains within blood vessels. It’s also not the fluid inside lymphatic vessels; once interstitial fluid enters lymph capillaries, it becomes lymph. So the fluid located between cells in tissues is the interstitial fluid.