Select the correct answer from each drop-down menu.
Radley had a swollen arm after slipping and falling down the stairs. His doctor explained what had happened to his arm. Use the most appropriate words to complete the doctor’s explanation.
Cells send out Histamine or allergens
to attract white blood cells to the damaged tissue. Local blood capillaries become more blocked or premeble
. The extra fluid moves from the capillaries to the damaged tissue, causing bleeding or edema
.