soma

2026-04-15 11:25:58 +02:00
parent 66a2098788
commit 3fdc710d36
1 changed files with 8 additions and 0 deletions
@@ -10,8 +10,16 @@ Qui comprendiamo:

 — ms:

+- Resting at -70 mV: Leak channels + pumps (keep at resting)
+- VDB Depolarization : ~1-2 ms: Na⁺ enters (some VGSCs open)
+- Opened VGSC remain closed for a refractory period
+ Spike if depolarized above threshold: to -50 mV
+- Repolarization to -70 mV:  ~1-2 ms: K⁺ exits (VG K⁺ channels open) ← NOT pumps!
+- After-hyperpolarization: ~5-20 ms: K⁺ channels still open
+
 — seconds:

+- Return to exact -70 mV: ~100-1000 ms: Na⁺/K⁺ pumps restore gradients
 - Ca2+ accumulation: SpikeTrainTraces

 — mins: