Template:Follicle class collapse table
From Embryology
| Human Ovarian Follicle Classification | |||||
| Class | Alternate nomenclature | Type | Number of Cells | Size (diameter µm) | Size ultrasound (mm) |
|---|---|---|---|---|---|
| primordial follicle | small | 1, 2, 3 | 25 | less than 50 | |
| primary follicle | preantral | 4 5 |
26 - 100 101 - 300 |
up to 200 | |
| secondary follicle | antral small antral large antral |
6 7 |
3001 - 500 501 - 1000 |
500 1000 - 6000 |
less than 18 |
| preovulatory follicle | Graafian | 8 | greater than 1000 | greater than 6000 | 18 – 28 |
| Links: ovary | oocyte | menstrual cycle | |||||
