what are two different categories of ion channels found at the neuromuscular junctio

Expert Solution

Neuromuscular Junction is the junction between A Nerve Fibre and a muscle fibre.It contains-

a.Pre synaptic membrane:Membrane of nerve Fibre

b.Synaptic Cleft:A gap between Nerve fibre and muscle fibre.

c.Post synaptic membrane:Membrane of muscle fibre.

The 2 Important Ion channels in the Neuromuscular junction are-

a.Voltage Gated Calcium channels:

*Voltage Gated Calcium channels are found in the presynaptic membrane.

*When action potential reaches Presynaptic axon terminal--Axon terminal Depolarisation occur-----This causes Opening of voltage gated Ca2+ channels---This calcium binds to Synaptic vesicles--this Causes fusion of Synaptic vesicle with pre synaptic Membrane ---which results in the Release of Neurotansmitter(Acetyl CHoline) into Synaptic Cleft.

b.Voltage gated Na+ channels:

When Neurotransmitter which is released into Synaptic cleft binds to its receptor in the post synaptic membrane--Some positive Ions enter post synaptic Membrane---This cuases Opening of Voltage gated Na+ channels--Rapid Na+ iNfulx causing depolarisation of Post synaptic membrane.

Sydney Mullin answered 1 year ago

What property of ion channels is exploited inoptogenetics?

What property of ion channels is exploited in optogenetics?

At least three different types of influence the gating of ion channels. (a)What are the types discussed in class?

At least three different types of influence the gating of ion channels. (a)What are the types discussed in class? (b)Select on type and describe it using a specific example. You may use an example not covered in lecture/textbook.

1.Briefly compare and contrast ion channels of the cell body and dendrites to the ion channels...

1.Briefly compare and contrast ion channels of the cell body and dendrites to the ion channels of the axon. *2 points 1.If a neuron is at rest, would diffusion drive sodium ions towards the inside or outside of the neuron? If a neuron is at rest, would electrostatic forces drive sodium ions towards the inside or outside of the neuron? *2 points 2.If a neuron is at rest, would diffusion drive potassium ions towards the inside or outside of the neuron? If...

The two types of neuromuscular junction are nondepolarizing neuromuscular blockers and depolarizing neuromuscular blockers. Constrict a...

The two types of neuromuscular junction are nondepolarizing neuromuscular blockers and depolarizing neuromuscular blockers. Constrict a table that compares and contrasts the therapeutic actions, indications, pharmacokinetics, contraindications, and important drug-drug interactions for each type of neuromuscular junction blocking agents.

Describe the two stages of the Action Potential. Include (i) the names of the ion channels...

Describe the two stages of the Action Potential. Include (i) the names of the ion channels and whether they are active or passive, (ii) which of these ion channels open during the first stage and which open during the second stage, and the direction ions move, and (iii) the value in mV reached during the two stages.

1) Explain the different types of ion channels. 2) Explain in detail the glucose symporter. How...

1) Explain the different types of ion channels. 2) Explain in detail the glucose symporter. How does it work and what is its mechanism?

describe the neuromuscular junction. what is the function of the neuromuscular junction?

during what type of ligand-receptor signaling are ion channels opened or closed

What are the different categories of hedge funds?

a) Explain what factors, structures, and ion channels contribute to establishing and maintaining the resting membrane...

a) Explain what factors, structures, and ion channels contribute to establishing and maintaining the resting membrane potential. Draw a cell and show all relevant contributors to the resting membrane potential with explanations of how they contribute to establish and maintain the resting membrane potential. b) What cells have a resting membrane potential? Is it only nerve and muscle (excitable) cells?

Question