https://padlet.com/marmar452/htxx0bubkp41 Made with the strength to succeed en-us 2019-03-08 15:02:23 UTC 2023-04-04 11:36:38 UTC hello@padlet.com marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339328904 THe brain sends a nerve impulse through the neuromuscular junction. When that is sent, the impulse causes calcium ion voltage gates open and allow for the calcium to enter the neuron. This allows for a stimulation of the acetylcholine (Ach) , or the neurotransmitter.THen the ach binds to the recptor which opens up voltage-gated Na+ ion channels which causes Na to flow through the muscle cell which causes it to become depolarized. The depolarization causes voltage gated k channels to open and send the action potential down the sarcolemma. This allows for the k pumps to be initiated and help make the cell become repolarized. ]]> 2019-03-08 15:05:00 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339328904 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339328964 Step 1:  The action potential  moves down the sarcolemma and down the T tubes.

 

]]> 2019-03-08 15:05:07 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339328964 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329013 Step 2: The action potential's movement down the t tubes causes Calcium to be released which then flows towards to Cyol  ]]> 2019-03-08 15:05:11 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329013 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329122 Step 3 and 4: Ca combines with troponin which causes the tropomyosin to be blocked through the changing of the shape of the Myosin. Finally the myosin creates a bridge that leads towards contraction.

]]> 2019-03-08 15:05:22 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329122 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329190 step 1: Myosin head attached to actin which forms a bridge.  

]]> 2019-03-08 15:05:28 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329190 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329234 step 2: Myosin head pivots and pulls actin towards M line ]]> 2019-03-08 15:05:33 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329234 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329285 Step 4: Hydrolysis of ATP causes the myosin head to "cock" into a high energy state ]]> 2019-03-08 15:05:39 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329285 marmar452 https://padlet.com/marmar452/htxx0bubkp41/wish/339329378 Step 3: Bridge deattaches by ATP attaching to the head ]]> 2019-03-08 15:05:47 UTC https://padlet.com/marmar452/htxx0bubkp41/wish/339329378