Lymph

Definition

Lymph is a clear fluid that circulates through the lymphatic system, transporting immune cells and removing waste products from tissues. It plays a crucial role in maintaining fluid balance and facilitating immune responses.

5 Must Know Facts For Your Next Test

1. Lymph originates from interstitial fluid that surrounds cells in tissues.
2. It contains lymphocytes, which are essential for adaptive immune responses.
3. Lymph nodes filter lymph, trapping pathogens and activating immune cells.
4. The flow of lymph relies on muscle contractions and valves to prevent backflow.
5. Lymphatic vessels transport lymph to the bloodstream, integrating the lymphatic system with the circulatory system.

Review Questions

• What is the primary function of lymph in the body?
• How do lymph nodes contribute to the immune response?
• What mechanisms ensure the unidirectional flow of lymph?

Related terms

Interstitial Fluid: The fluid surrounding tissue cells, which becomes lymph when it enters lymphatic vessels

Lymphocyte: A type of white blood cell found in lymph that plays a key role in adaptive immunity

Lymph Node: Small structures that filter pathogens from lymph and activate an immune response