0
An electrical stimulis passes through a motor nerve and releases Acetycholine across the synaptic cleft onto excitatory receptors on the muscle fiber. The Ach triggers an action potential which ripples throughout the muscle fiber and down into the T-Tubules. In these T-tubules are voltage gates. They are activated and force the sarcoplasmic reticulum to release calcium ion into the cytoplasm of the cell. The Calcium ion binds to the troponin on the tropomyosin on the actin fiber which then "rolls" out of the way so that the myosin heads can latch onto the actin fiber and act as a wratchet, pulling the actin fibers closer together and thus shortening the muscle/myofiber.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What ist the process called that causes the cell to contract or shorten?
This process is called contraction. Muscles shorten or contract to produce movement.
What carries blood myocardium?
Conduction myofibers
How does changing the frequency of a wave affect its wavelength?
It causes the wavelength to shorten
A contraction that causes a muscle to lengthen rather than shorten is called?
An eccentric contraction is one that causes a muscle to lengthen.
Are there any disadvantages of a longer ar15 gas system?
none, it's when you shorten the gas system that causes out of battery problems.
How can rigor mortis be avoided in animals?
Rigor mortis is a natural and normal process that occurs in the carcass of all dead animals with developed muscular systems. It is caused by the continued activation of myofibers that eventually become "stuck" in the contracted phase. When all the myofibers are contracted and remain that way, the overall carcass becomes stiff and is said to be in rigor mortis. After a while, the myofibers start to break down under bacterial digestion and the rigor mortis will eventually collapse. There is no way to avoid rigor mortis to the best of my knowledge.
How do you shorten Et cetera?
you shorten it by etc.
How do you shorten it has where does the apostrophe go?
You don't shorten 'it has'.
Can vitamins shorten your height?
Vitamins can't shorten your height.
What is the birth name of Bill Shorten?
Bill Shorten's birth name is William Richard Shorten.
What is the birth name of Chick Shorten?
Chick Shorten's birth name is Charles Henry Shorten.
What is the birth name of Patricia Shorten?
Patricia Shorten's birth name is Patricia Shelley Shorten.
