Dendritic spine classification parameters
| Spine type/parameter . | Head . | Length . | Width/length ratio . |
|---|---|---|---|
| µm | |||
| Filopodia | No | >1.2 | Not applicable |
| Stubby | No/Yes | <1.2 | If the head is present, <0.5; if no head, not applicable |
| Thin | Yes | >1.2 | <0.5 |
| Mushroom | Yes | Not applicable | >0.5 |
| Spine type/parameter . | Head . | Length . | Width/length ratio . |
|---|---|---|---|
| µm | |||
| Filopodia | No | >1.2 | Not applicable |
| Stubby | No/Yes | <1.2 | If the head is present, <0.5; if no head, not applicable |
| Thin | Yes | >1.2 | <0.5 |
| Mushroom | Yes | Not applicable | >0.5 |