Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
신경충격은 신경 세포 간의 신호 전달을 의미합니다.Singyeongchunggyeogeun singyeong sepo gan-ui sinho jeondaleul uimi-hamnida.A nerve impulse refers to the signal transmission between nerve cells.