ho w does capillaries help in gas exchange
Answers
Answered by
2
Their surface is moist to allow oxygento dissolve. They have a very thin liningto allow oxygen to diffuse into the blood easily. Surrounded by a network of blood capillaries to pick up and transport oxygen. There is anexchange of gases between the air sacs and their surrounding capillaryblood vessels.
hope it helps
hope it helps
Similar questions