Question

what are capillaries? why do they have thin walls?

Answer 1

  i hope it help u

Capillaries need to be thin walled because their main job is gas exchange. Throughout most of the body, they bring oxygen to the tissues and remove carbon dioxide. ... If the capillaries did nothave thin walls, the gases could not diffuse through, which would make this important job very difficult.

Answer 2

Capillaries need to be thin walled because their main job is gas exchange. Throughout most of the body, they bring oxygen to the tissues and remove carbon dioxide. ... If the capillaries did nothave thin walls, the gases could not diffuse through, which would make this important job very difficult.