関連ワード:
which blood vessels have thicker smooth muscle walls which blood vessels have the thickest smooth muscle walls which blood vessel has a thicker smooth muscle walls which blood vessels have the thickest smooth muscle wall quizlet which type of blood vessel has thick smooth muscle walls which blood vessel has the thickest smooth muscle wall which blood vessels have a relatively thick smooth muscle layer in their walls which blood vessels have thick muscular walls which blood vessel has the thickest layer of smooth muscle
