T-Tubule Calcium Sync
created 17 Jul, 03:56 pm · ⏱ built in 59.0s · 👁 0 views
Follow the path of a heart muscle action potential as it dives into T-tubules, opens L-type calcium channels, triggers RyR2 on the sarcoplasmic reticulum, and creates a cell-wide calcium wave for contraction. Tap the numbered checkpoints or press Run all to animate each step; use the density comparison to see why a dense T-tubule network makes contraction synchronous.
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Fourth Year Medical School Student
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