ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tissue fluid would flow backwards, potentially causing edema, or tissue fluid build-up
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It would have no effect, because muscle action would still keep fluid flowing
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There are no valves in the lymphatic vessels
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Tissue fluid would flow too quickly, causing a heart attack due to the increased fluid flow to the heart
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Detailed explanation-1: -Lymph fluid can only flow forward through lymphangions due to the closing of valves after fluid is pushed through by fluid accumulation, smooth muscle contraction, or skeletal muscle contraction. Without valves, the lymphatic system would be unable to function without a central pump.
Detailed explanation-2: -One of the lymphatic system’s primary jobs is to collect excess fluid (particularly lymph fluid) surrounding the body’s tissues and organs and return it to the bloodstream. If the lymphatic system didn’t drain excess fluid from the tissues, the lymph fluid would build up in the body and cause swelling.
Detailed explanation-3: -If our lymphatic system were not present in our body, we would not be able to drain the excess fluid, so our tissues would swell due to the accumulation of fluids and cells would literally drown, or become stagnant in the accumulated fluid and it would become the breeding grounds for infection.
Detailed explanation-4: -The primary function of lymphatic vasculature is to maintain interstitial fluid homeostasis. Lymphatic vessels absorb fluids that extravasate from blood vessels and return them to blood circulation. In addition, lymphatic vessels absorb digested lipids from the intestine and regulate inflammation.