Home Collection Human Human brain development Normal development 21-22 weeks fetus 1 H&E stain Nissl staining Schemes 1 (1575) 2 (1375) 3 (1275) 190 191 192 193 194 195 200 350 550 750 800 850 900 950 1050 1200 1300 1400 1500 1600 1700 10 Supported by