相邻细胞间直接电突触传递的结构基础是 []
A. 缝隙连接
B. 紧密连接
C. 突触连接
D. 终板连接
E. 接头联系
which one is the arteries of abdomen? ()
A. Renal artery
B. Axillary artery
C. Femoral artery
Deep femoral artery
E. Anterior tibial artery
If stroke volume is 75ml and heart rate is 80/min, the cardiac output is L/min.
A. 2.0
B. 3.0
C. 5.2
D. 5.5
E. 6.0
Which of the following are incorrectly paired?
A. B cell-insulin
B. D cell-somatostatin
C. A cell-glucagon
D. S cell-secretin
E. F cell-gastrin
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