Question

edema (swelling) occurs when ________.
collagen fibers enlarge as they change from dehydrated to hydrated shape
adipose cells enlarge by pinocytosis
reticular connective tissue invades the area
areolar tissue soaks up excess fluid in an inflamed area

Explanation:

Edema is swelling caused by excess fluid trapped in the body's tissues. Areolar tissue, a type of loose connective tissue, can soak up excess fluid in an inflamed area, leading to edema. Collagen fibers do not change shape in this way to cause edema. Adipose cells enlarge by lipid accumulation, not pinocytosis. Reticular connective tissue does not invade areas to cause edema.

Answer:

areolar tissue soaks up excess fluid in an inflamed area