A.若适当增大细胞外溶液的K+浓度,则静息电位的绝对值将变小 |
B.神经递质作用于心肌后,一定引起Na+通道介导的Na+内流,出现0期 |
C.在2期中,Ca2+内流量和K+外流量相等,所以膜电位变化非常平缓 |
D.在4期中,Ca2+运出细胞的方式为主动运输,需要消耗能量 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2