1. Motor neuron transmission of nerve signals to the muscles through the motor nerve causes the secretion of
neurotransmitters. Acetylcholine (Ach)
2. Ach Ach receptor catch on the end plate membrane cause the door to open and the ionic
action Potential muscle cells and spread by T Tublue
3. urged sarcoplamic reticulum (SR) Ca2 + release
issued here. Many And flows to bind to
actin Troponin- C on the challenge of transforming its shape. Tropomyosin-troponin complex
by atin open Active site on
the actin and myosin attachment of the sliding of the actin myosin cause a contraction of the
muscle. So, it was found that the length of the sarcomere is reduced and the size of the I band H zone shortened, but
the size of Aband continue