Under normal circumstances, a small amount of fluid is filtered from the capillary in excess of that which is absorbed. What prevents edema from occurring under these conditions?
a. The lymphatic system absorbs it and re-turns it to the circulatory system.
b. Tissue cells absorb this fluid and use it in the metabolic process.
c. Wandering macrophages use this excess fluid in hydrolyzing invaders.
d. Waste products dilute this, maintaining eutonic conditions.
ANS: A
This slight outward excess is balanced by fluid return through the lymphatic circulation.
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