The most permeable ion of the nerve membrane at resting potential is()
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The electrical activity that can conduct in an unattenuated form along an excitable cell membrane is()
A. Resting potential
B. Action potential
C. Endplate potential
D. Receptor potential
Glucose enters the red blood cell from the extracellular fluid
A. Simple diffusion
B. carrier-mediated facilitated diffusion
C. exosytosis
D. Channel-mediated facilitated diffusion
The internal environment is
A. extracellular fluid
B. gastrointestinal fluid
C. intracellular fluid
D. Intracellular fluid and extracellular fluid
关于动脉血压的说法，正确的是（ ）。
A. 舒张压是心室收缩时动脉压升到的最高值
B. 心室舒张时动脉血压降低到最低值称为收缩压
C. 大动脉弹性是形成动脉压的前提
D. 心射血产生的动力和血液遇到的外周阻力，是形成动脉血压的2个基本因素
E. 足够的血量对动脉血压具有缓冲作用
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