Neurotransmitter of neuromuscular junction
What do you mean by the neurotransmitter of neuromuscular junction? Explain, how the nervous system triggers the muscle contraction?
Expert
Nervous cells which result in contraction of muscles are motor neurons. The neurotransmitter of motor neurons is known as acetylcholine. Whenever a motor neuron gets excited the depolarizing current flows all along the membrane of its axon until reaching the synapse at neuromuscular junction: the neural impulse passage zone between the sarcolemma and the axon extremity. Near to the axonal extremity the depolarization permits entrance of the calcium ions to the axon. The calcium ions stimulate neuron in order to release acetylcholine in synapse. Then acetylcholine binds to the special receptors in outer surface of sarcolemma, permeability of this membrane is changed and action potential gets created. Depolarization is conduced all along the sarcolemma to sarcoplasmic reticulum which therefore releases calcium ions for the contraction of the sarcomere.
Define the term anoxia? Briefly explain it.
Give the basic difference between metabolic alkalosis and respiratory alkalosis?
I have a problem in the comparison of I-You and I-Thou relationship. So give me the Comparison and contrast what happens in an I-You relationship with an I-Thou relationship.
A 35-year old woman has been chosen for the hysteroscopy. What are the signs for hysteroscopy in a woman of this age?
How hemophilia is treated? Why hemophilia is rare in the females?
Describe the structure of central nervous system which regulates pulmonary respiration? Answer: The pulmonary respiration is controlled by the neural respiratory cen
Write down the differentiations between anastral and astral mitosis.
Colloidal minerals: A "colloid" is a chemical explanation of a gel-like suspension. Thus, colloidal minerals would be a blend of minerals found in certain form of suspension or solution. Usually, commercially-available colloidal minerals are generated
Which plant tissues form plant roots?
Write the evolutionary advantage of the occurrence of sperm cells and larval phase in the life cycle of sponges?
18,76,764
1947113 Asked
3,689
Active Tutors
1411738
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!