Câu 32. Xung thần kinh lan truyền theo các bó sợi thần kinh từ vỏ não xuống đến cơ ngón chân làm ngón chân co lại. Cho rằng chiều cao của một người là 1,5m, tốc độ lan truyền là 100m/giây. Thời gian xung thần kinh lan truyền từ vỏ não xuống ngón chân là A. 0,015 giây. B. 0,15 giây. C. 0,625 giây. D. 0,0625 giây

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