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  1. ...across the synaptic cleft, which is step #3. Once ACh binds to receptors on the sarcolemma, sodium...depolarization occurs. An action potential is formed once threshold is reached. That ...

    3 Answers · Science & Mathematics · 10/05/2007

  2. ...previous neurons. The dendrites contain AcH receptors along their cell membrane & as these neurotransmitter touch the dendrites they activate a form of receptor mediated endocytosis & cause...

    3 Answers · Science & Mathematics · 18/03/2013

  3. ...protein coupled receptors (like the muscarinic Ach receptor), work through a second messenger pathway. ...or IP3) and causes a cellular response in the form of protein kinases and gene trascription.

    2 Answers · Science & Mathematics · 09/03/2008

  4. ...junction, the neuron secretes the neurotransmitter acetylcholine ( Ach ), which diffuses across the synaptic cleft. Action... Ca2+. Myosin cross bridges form . The Ca2+ released by the sarcoplasmic...

    8 Answers · Science & Mathematics · 15/07/2009

  5. ...to the actin filaments in the presence of calcium ions and ATP, forming actomyosin complex. The energy released by hydrolysis of ...

    2 Answers · Science & Mathematics · 19/06/2011

  6. ...the rod-like tropomyosin molecule covers the sites on actin where myosin can form crossbridges. Upon binding calcium ions, troponin ...

    1 Answers · Science & Mathematics · 14/11/2013

  7. ... in the abdomen. As you eat, your stomach ach expands to hold all of the food that you swallow. ...material has been broken down into liquid form . Proteins will be chemically digested into ...

    5 Answers · Science & Mathematics · 12/08/2009

  8. ...understand the basics: At the synaptic gap a neurotransmitter is released form the sender (presynaptic neuron) it crosses the gap to the reciever (postsynaptic neuron...

    2 Answers · Science & Mathematics · 02/02/2010

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