ANATOMY

Detailed explanation-1: -The correct answer option is (A). A thin tube that functions to carry or transport the lymphatic fluid is called a lymphatic vessel. The lymphatic vessel structure is similar to that of a vein because both possess one-way valves that are involved in the prevention of backflow.

Detailed explanation-2: -Like veins, the lymphatic tributaries have thin walls and have valves to prevent backflow of blood. There is no pump in the lymphatic system like the heart in the cardiovascular system.

Detailed explanation-3: -Lymphatic capillaries are similar to blood capillaries, but they are larger in diameter and have closed ends. Unlike blood capillaries, fluid can flow into lymph capillaries but can’t flow out through the cell walls. It can only move forward.

Detailed explanation-4: -Answer and Explanation: The structure of the lymphatic system resembles the venous blood system. Both start as small capillaries that accumulate cells that have left the arterial blood system either in bulk or those that have strayed.

Detailed explanation-5: -The lymphatic system includes lymph vessels, lymph fluid, and lymph tissues and organs (lymph nodes, tonsils, spleen, thymus, and the thoracic duct). The lymphatic system is parallel to and works in concert with the venous system.