Lymphatic Capillaries

Question

Lymphatic capillaries
A) absorb tissue fluid and transport it toward the heart.
B) are close to and parallel the distribution of arterioles.
C) are composed of smooth muscle and determine SVR (systemic vascular resistance).
D) transport protein-free interstitial fluid.

Accepted Answer

Lymphatic capillaries absorb tissue fluid, including proteins and other substances, from the interstitial spaces and transport it as lymph toward the heart, where it is returned to the venous circulation. This function is crucial for maintaining fluid balance in the body and for immune system function.