ANATOMY
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Smooth and skeletal muscle contractions
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Valves along lymph vessels
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The heart
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it uses gravity
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Detailed explanation-1: -Fluid moves from the interstitial space into the lymph capillaries by means of a pressure mechanism exerted by respiration, peristalsis of the large intestine, the compression of muscles, and the pull of the skin and fascia during movement.
Detailed explanation-2: -Answer and Explanation: Lymph is returned to the heart through the following mechanisms: Smaller lymphatic vessels contain primary valves, and the larger collecting vessels feature secondary valves. The closely-spaced, one-way valves maintain the lymphatic flow towards the heart and prevent stasis and backflow.
Detailed explanation-3: -Valves are found in larger lymph vessels and collecting vessels and are absent in the lymphatic capillaries. The valves is to prevent backflow of fluid, so that lymph eventually flows forward instead of falling backwards.