单项选择题Which of the following cell types is present in the gastric glands of the pyloric stomach
单项选择题Which one of the following statements regarding cartilage is FALSE
单项选择题All of the following cells arise from cells arise from undifferentiated mesenchymal cells within connective tissue and remain there permanently EXCEPT?
单项选择题Which of the following statements concerning the epicardium is TRUE
单项选择题.Energy production in mature erythrocytes is accomplished by which one of the following