Fig. 10 · Calcium
The impulse runs along the membrane and down the T-tubules. At each triad calcium floods out of the sarcoplasmic reticulum, the sarcomeres contract, and the reticulum pumps it back.
The impulse runs along the membrane and down the T-tubules. At each triad calcium floods out of the sarcoplasmic reticulum, the sarcomeres contract, and the reticulum pumps it back.