calculations based on the number of granulosa cells in follicles of various classes and from the time required to double the number of cells within a follicle indicate that a follicle takes 27 days to grow from 0.13 to 0.67 mm , 6.8 days from 0.68 to 3.67 mm and 7.8 days from 3.68 to 8.56 mm , indicating that growth rates varied with the size of the follicle .
C0018207
granulosa cells
C0018120
follicle