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What happens when binding acetylcholine to the chemically gated ion channels on the plasma membrane of the muscle fiber?
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What is the open or close in response to binding specific molecules?
Chemically-gated channels
What is a system of membrane channels called?
In the nervous system the system of membrane channels is called the neuroreceptors. Neurotransmitters use the neuroreceptors as binding sites.
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.
How are chemically gated channels activated?
Chemically-gated ion channels are receptor membrane proteins that are permeable to specific ions. The 'gating' part of it refers to the channel being open only once activated; which in this case will be by a chemical. An example would be the AMPA glutamate receptor, which has a channel pore that is permeable to sodium ions. Only by binding to glutamate (a neurotransmitter) does the channel allow sodium ions to enter the cell.
Do membranes of the dendrites contain chemically gated ion channels?
Yes, the membranes of dendrites contain chemically gated ion channels. These channels open or close in response to specific neurotransmitters binding to their receptors, allowing ions such as sodium, potassium, or calcium to flow into or out of the dendrite. This ion movement is crucial for generating electrical signals in dendrites and communication between neurons.
Binding of the Acetylcholine to receptors causes a by opening what channels that permit both potassium and sodium to permeate the membrane?
Nicotinic by depolarization
What is the open or close in response to binding specific molecules?
Chemically-gated channels
What neurotransmitter control the somatic nervous system and how does it work?
Acetylcholine (ACh) is the only neurotransmitter used in the motor division of the somatic nervous system. It works by binding to acetylcholine receptors on skeletal muscle fibers and opening ligand-gated sodium channels in the cell membrane.
What neurotransmitter controls the somatic nervous system how does it work?
Acetylcholine (ACh) is the only neurotransmitter used in the motor division of the somatic nervous system. It works by binding to acetylcholine receptors on skeletal muscle fibers and opening ligand-gated sodium channels in the cell membrane.
At the neuromuscular junction, the muscle contraction initiation event is?
binding of acetylcholine to membrane receptors on the sarcolemma
What is a system of membrane channels?
In the nervous system the system of membrane channels is called the neuroreceptors. Neurotransmitters use the neuroreceptors as binding sites.
What is a system of membrane channels called?
In the nervous system the system of membrane channels is called the neuroreceptors. Neurotransmitters use the neuroreceptors as binding sites.
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. .
Binding of neurotransmitter to the receptors on the motor endplate open?
Binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate. Further down the line, this would cause muscle contraction through the release of Ca2+ from the SR.
What three stimuli open and close gated channels?
Change in the voltage across the membrane, ligand binding, and mechanical stress.
How are chemically gated channels activated?
Chemically-gated ion channels are receptor membrane proteins that are permeable to specific ions. The 'gating' part of it refers to the channel being open only once activated; which in this case will be by a chemical. An example would be the AMPA glutamate receptor, which has a channel pore that is permeable to sodium ions. Only by binding to glutamate (a neurotransmitter) does the channel allow sodium ions to enter the cell.
