関連ワード:
which blood vessels have thick muscular walls which blood vessels have thick muscular walls and narrow lumens which blood vessel has thick muscular walls which blood vessels have the thickest muscular walls which blood vessels have thicker smooth muscle walls which blood vessels have thick muscular and elastic walls which blood vessels have thicker muscular walls and thicker layers of elastic fibres which blood vessel type has thick muscular walls which blood vessel has the thickest muscular walls which of the following blood vessels have thick muscular walls
