TABLE 2.
Average Length of Cilia in the Neocortical Lamina at Different Ages1
| L1 | L2 | L3 | L4 | L5 | L6 | |
|---|---|---|---|---|---|---|
| P0 | 0.9 ± 0.1 (2) | 1.3 ± 0.1 (3.3) | 1.3 ± 0.1 (3.3) | 1.3 ± 0.1 (3.3) | 1.2 ± 0.1 (3.7) | 1.2 ± 0.1 (3.7) |
| P4 | 2.5 ± 0.2 (4.6) | 1.3 ± 0.1 (2.2) | 1.8 ± 0.1 (3.1) | 1.8 ± 0.1 (3.1) | 3.4 ± 0.1 (6.6) | 2.9 ± 0.1 (4.5) |
| P7 | 2.7 ± 0.3 (4.2) | 3.8 ± 0.1 (7.1) | 4.4 ± 0.1 (7) | 3.4 ± 0.1 (5.3) | 3.8 ± 0.1 (6.9) | 3 ± 0.1 (5.3) |
| P14 | 4 ± 0.4 (6.5) | 4.5 ± 0.1 (6.9) | 4.8 ± 0.1 (8.3) | 3.5 ± 0.1 (5.7) | 4.6 ± 0.2 (8.4) | 3.5 ± 0.1 (6.9) |
| P60 | 4.6 ± 0.2 (7) | 5 ± 0.1 (7.7) | 5.2 ± 0.1 (9.2) | 4.5 ± 0.1 (7.5) | 6.3 ± 0.2 (9.7) | 4.4 ± 0.1 (7.5) |
| P90 | 4.1 ± 0.2 (6.5) | 4.3 ± 0.1 (6.1) | 5.2 ± 0.1 (7.9) | 5.1 ± 0.1 (7.7) | 6.2 ± 0.1 (10.8) | 5.1 ± 0.1 (8.1) |
| P170 | 3 ± 1 (4.9) | 3.9 ± 0.3 (6.6) | 3.6 ± 0.2 (6) | 3.7 ± 0.4 (5.9) | 4.8 ± 0.2 (8.3) | 4.4 ± 0.1 (8.1) |
| P365 | 4.9 ± 0.5 (6.6) | 4.4 ± 0.2 (7.3) | 4.3 ± 0.1 (6.2) | 3.9 ± 0.2 (4.8) | 5 ± 0.3 (9.9) | 4.6 ± 0.1 (6.5) |
1
Average length (in micrometers) ± SEM and maximum length noted (in parentheses) of cilia in the cortical layers at different ages. At P0, only upper and deep cortical strata were quantified, and those values were used for layers 2–4 (upper) and layers 5–6 (deep). The same applies to layers 3 and 4 at P4. The subplate at P0 was included in layer 6, but at P4 showed marked differences, with a mean cilia length of 3.8 ± 0.1 lm and a maximum of 5.4 μm.