Description of neurotransmitter of neuromuscular junction
Give a brief description of neurotransmitter of neuromuscular junction? How does nervous system trigger the muscle contraction?
Expert
Nervous cells which trigger muscle contraction are motor neurons. Neurotransmitter of motor neurons is acetylcholine. When a motor neuron is stimulated depolarizing current flows along the membrane of its axon till reaching the synapse at neuromuscular junction (neural impulse passage zone between axon extremity and sarcolemma). Near the axonal extremity depolarization permits entrance of calcium ions in the axon (note that calcium also has a relevant function here). The calcium ions excite the neuron to liberate acetylcholine in synapse.
Acetylcholine then binds to special receptors into outer surface of sarcolemma, permeability of this membrane is changed and an action potential is created. The depolarization is then conduced along sarcolemma to sarcoplasmic reticulum that thus liberates calcium ions for sarcomere contraction.
Write down the brain region which is responsible for regulation of breathing and blood pressure?
Systems Development: The SDLC is a process of information system (abbreviated as IS) development. Different SDLC models have been made and can be implemented, comprising waterfall, rapid prototyping, spiral, incremental, fountain, build and fix, synch
What are the significant sources of Phosphorus?
Specify the number of cellular nuclei does the pollen tube of the angiosperms have? Specify the ploidy of each of these nuclei?
Promotion: Since ours is a small venture to begin with, we would like to confine our promotional activity to advertising. We have set our advertising goals as: To be noticed To be understood To stimulate action, suc
Explain in your own words the value of a customer to an organization and what supporting methodology should be used to ensure their satisfaction and what elements should be applied to the methodology to ensure the information received is salient.
What does Ammonal comprises? For what purpose it is employed.
What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity?
Should I carry on having a pelvic exam each and every year when I have had a Hysterectomy?
After crossing the epididymides through which structures do sperm cells pass until exteriorization?
18,76,764
1947110 Asked
3,689
Active Tutors
1419849
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!