Observation of The Microvasculature Casis of The Coluber spinalis and Bufo raddei Lung Under the Scanning Electron Microscope

The microvasculature of the lung of Coluber spinalis (Peters) and Bufo raddei Strauch was studied with the replicascanning electron microscope method.The results show that the inside wall of Coluber spinalis lung there are many reticular septa and secondary septa and third septa so that it is separated to a lot of small room,subordinate room and pulmonary alveoli.The inside wall of Bufo raddei Strauch lung there are only reticular septa and secondary septa.In the all septa and pulmonary alveoli there are plenty of capillary.They anastomosed to a single layer dense network each other.In addition,the relationship between the microvasculature of the two animals lung and respiratory rate are also discused.