The internal environment of the body refers to []
A. Body fluid
B. Intracellular fluid
C. Extracellular fluid
D. Blood
E. Tissue fluid
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When animals see food, they cause saliva secretion, which belongs to []
A. Unconditional reflection
B. Non-automatic control
C. Positive feedback control
D. Negative feedback control
E. Feedforward control
The basic condition for stimulation to stimulate is to make the transmembrane potential reach []
A. spike potential
B. threshold potential
C. negative posterior potential
D. local potential
E. positive posterior potential
与延髓相连的脑神经是()
A. 副神经
B. 迷走神经
C. 舌下神经
D. 舌咽神经
E. 三叉神经
局部反应的特征有()
A. 幅度大小具有“等级性”
B. 传导表现出衰减性
C. 具有程度不等的不应期
D. 多个局部反应可以实现叠加
E. 全或无
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