37 下列敘述何者錯誤？
大靜脈中膜（tunica media of large veins）是其管壁層中最薄的，並具環形圍繞的平滑肌
 大靜脈外膜（tunica adventitia of large veins）是其管壁層中最厚的
下腔靜脈外膜具有縱走的平滑肌
中型靜脈外膜具有縱走的平滑肌

answer is C

下腔靜脈 the IVC
distinction of large veins: ICOL: longitudinal muscle outside at tunica adventitia