Lymphatic capillaries

Definition

Lymphatic capillaries are tiny, thin-walled vessels located throughout the body, serving as the starting point for lymph to enter the lymphatic system. They function to absorb excess tissue fluid and proteins, returning them to the bloodstream and playing a critical role in maintaining fluid balance and immune defense.

Related terms

Lymph: A clear fluid that circulates in the lymphatic system, carrying cells that help fight infection and disease.

Lymph Nodes: Small, bean-shaped structures that filter lymph and store white blood cells, helping to identify and fight infections.

Edema: Swelling caused by excess fluid trapped in the body's tissues, often reduced by the drainage function of the lymphatic system.