单项选择题

The blood-gas barrier in alveoli may include each of the following EXCEPT

A．cytoplasm of a type Ⅱpneumocyte
B．basal lamina of type Ⅰalveolar cells
C．cytoplasm of a type Ⅰpneumocyte
D．endothelium of a continuous capillary
E．basal lamina of an endothelial cell
<上一题 目录 下一题>
热门 试题

单项选择题
Which of the following statements concerning adrenal parenchymal cells is TRUE
A．Those of the zona fasciculate produce androgens
B．Those of the adrenal medulla produce epinephrine and norepinephrine
C．Those of the zona glomerulosa produce glucocorticoids
D．Those of the cortex contain numerous secretory granules
E．Those of the adrenal medulla produce glucocorticoids
单项选择题
Circulating antibodies are synthesized and secreted by which of the following cells
A．T memory cells
B．B memory cells
C．T helper cells
D．Plasma cells
E．T cytotoxic cells
相关试题