Last evening while walking barefoot, a young adult stepped on a nail that went 1/2 inch into the heel of their foot. After removing the nail and cleaning the wound, they applied a bandage and went to sleep. This morning the skin around the bandage is red, warm, painful, and oozing a thick, yellow drainage.? Based on the cues, which specific body system is most directly involved? Cardiovascular Musculoskeletal Genitourinary Neurologic