whaen comparing the flow of lymph in the lymphatic system with the flow of blood in the circulatory system, it can be said that the lymphatic system also :
A- USES A PUMP
B- CONTAINS FLUID THAT TRAVELS IN ONLY ONE DIRECTION
C-USES VALVES TO PREVENT BACKWARD FLOW
CONTAINS FLUID THAT TRAVELS IN A CLOSED CIRCUIT
In order to determine the correct answer, let's consider the different characteristics of the lymphatic system and the circulatory system.
The circulatory system, also known as the cardiovascular system, is responsible for the transport of blood throughout the body. It consists of the heart, blood vessels, and blood. The heart acts as a pump, actively contracting to propel the blood through the arteries, capillaries, and veins. This pumping action ensures that the blood flows continuously in a closed circuit.
On the other hand, the lymphatic system is a network of vessels, lymph nodes, and organs that play a crucial role in maintaining the body's immune system. It carries a clear fluid called lymph, which is derived from extracellular fluid. Unlike the circulatory system, the lymphatic system does not have a dedicated central pump, like the heart. Instead, it relies on other mechanisms to move the lymph.
Considering these differences, we can eliminate option A, "USES A PUMP," as lymph flow does not depend on a pump.
Moving on to option B, "CONTAINS FLUID THAT TRAVELS IN ONLY ONE DIRECTION," this statement is true for both the lymphatic system and the circulatory system. In both systems, valves help ensure that fluid flows in a unidirectional manner, preventing any backflow.
Regarding option C, "USES VALVES TO PREVENT BACKWARD FLOW," we have already discussed that valves are present in both the lymphatic and circulatory systems to maintain the one-way flow of fluid.
Lastly, option D, "CONTAINS FLUID THAT TRAVELS IN A CLOSED CIRCUIT," only applies to the circulatory system. In the lymphatic system, the flow of lymph is not a closed circuit, as lymph drains into larger lymphatic vessels and eventually returns to the circulatory system through the thoracic duct.
Based on the explanations provided, the correct answer is:
B- CONTAINS FLUID THAT TRAVELS IN ONLY ONE DIRECTION
and
C- USES VALVES TO PREVENT BACKWARD FLOW.