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When the Ach binds to receptor sites on the muscle cell membrane it causes channels to open and allows Na+ to move into the cell which then causes an action potential.

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What is ACh receptors?

ACH receptors can be defined as an integral membrane protein that responds to the binding of acetylcholine, a neuoyansmitter. Two example are nicotinic acetyl line receptors and muscarinic acetylcholine receptors. .


What mechanism does curare acts by?

Curare acts by blocking the transmission of nerve impulses at the neuromuscular junction, leading to muscle paralysis. It does this by binding to and blocking nicotinic acetylcholine receptors on the post-synaptic membrane, preventing the action potential from propagating across the muscle cell membrane.


What is the effect of curare on eliciting an action potential?

it is an alpha-toxin that binds to acetylcholine binding sites on the postsynaptic cell membrane, which prevents the acetylcholine from acting. Curare blocks synaptic transmission by preventing neural impulses to flow from neuron to neuron. It does allow the action potential to travel in the axon, it just doesn't pass it on to the dendrite.


Receptors for acetylcholine are located on the?

Acetylcholine receptors are located on the motor end plate or postsynaptic sarcolemma. Otto Loewi was a German pharmacologist whose discovery of acetylcholine earned the 1936 Nobel prize in Physiology or Medicine which he shared with Sir Henry Dale. Acetylcholine is a neurotransmitter. Neurotransmitters are chemicals that transmit signals from a neuron to a target cell across the synapse and most are synthesized at the nerve terminals.


Is the effect of a neurotransmitter on the muscle cell membrane to modify its ion permeability properties temporarily?

Yes, neurotransmitters can modify the ion permeability of muscle cell membranes temporarily by binding to specific receptors on the cell surface. This binding can lead to changes in membrane potential and the initiation of muscle contraction or relaxation.

Related Questions

At the neuromuscular junction, the muscle contraction initiation event is?

 binding of acetylcholine to membrane receptors on the sarcolemma


What is the chemical transmitter released at the neuromuscular junction?

Acetylcholine is the primary chemical transmitter released at the neuromuscular junction. It binds to acetylcholine receptors on the muscle cell membrane, leading to muscle contraction.


The chemical that transmits the signal across the neuromuscular junction is called?

Acetylcholine is the chemical that transmits signals across the neuromuscular junction. It binds to receptors on the muscle cell membrane, leading to muscle contraction.


What is the neurotransmitter used at the neuro muscular junction is?

The neurotransmitter used at the neuromuscular junction is acetylcholine. It is released from the motor neuron terminals and binds to receptors on the muscle cell membrane, leading to muscle contraction.


What is released to muscle cell receptors to trigger muscle contractions?

Acetylcholine


What happens to the muscle membrane when acetylcholine binds to receptors at the motor plate?

When acetylcholine binds to receptors at the motor plate, this binding opens ligand-gated ion channels on the motor end plate, ions diffuse through the open ligand gated ion channels, and the flow of ions causes the motor end plate to reach threshold and an action potential is generated at the motor end plate.


What is ACh receptors?

ACH receptors can be defined as an integral membrane protein that responds to the binding of acetylcholine, a neuoyansmitter. Two example are nicotinic acetyl line receptors and muscarinic acetylcholine receptors. .


What is the transmission of the stimulus at the neuromuscular junctions involves?

The transmission of the stimulus at the neuromuscular junction involves the release of acetylcholine from the motor neuron, binding to acetylcholine receptors on the muscle cell membrane, causing depolarization of the muscle cell, and ultimately leading to muscle contraction.


Where does the acetylcholine released for muscle contraction bind?

Sarcolema receptors


Chemical released to stimulate muscle contraction?

Acetylcholine is the primary neurotransmitter released by motor neurons at the neuromuscular junction to stimulate muscle contraction. It binds to receptors on the muscle cell membrane, initiating a series of events that ultimately lead to muscle contraction.


How does curare cause muscle paralysis?

Curare is a competitive inhibitor of acetylcholine. It fights with acetycholine for postsynaptic receptors.


What does ach do at a neuromuscular junction?

ACh (acetylcholine) binds to receptors at the NMJ (neuromuscular junction) to induce contraction of muscle.