GENERAL HISTOLOGY

Detailed explanation-1: -There is no pump in the lymphatic system like the heart in the cardiovascular system. The pressure gradients to move lymph through the vessels come from the skeletal muscle action, respiratory movement, and contraction of smooth muscle in vessel walls.

Detailed explanation-2: -Lymphatic vessels collect and filter lymph (at the nodes) as it continues to move toward larger vessels called collecting ducts. These vessels operate very much like your veins do: They work under very low pressure, have a series of valves in them to keep the fluid moving in one direction.

Detailed explanation-3: -Answer and Explanation: The correct answer is (b): Lymph flows through sinuses in a slow manner. The lymph fluid enters a lymph node through afferent lymphatic vessels and moves through the subcapsular sinus. From there, it enters and meanders through a number of small sinuses.