End of the muscle fiber
I think it is the motor end plate
A molecule such as a neurotransmitter or hormone that binds to a receptor is called a ligand. This binding triggers a biological response in the target cell, influencing its function.
Benzodiazepines enhance the activity of the neurotransmitter GABA at its receptor in the brain, which leads to a calming and sedative effect. This interaction helps to reduce anxiety, promote relaxation, and improve sleep quality.
Receptors are proteins on the surface of nerve cells that bind to specific neurotransmitters, which are chemical messengers. When a neurotransmitter binds to a receptor, it triggers a series of events that allow the nerve cell to transmit signals to other cells in the nervous system. This interaction between receptors and neurotransmitters is essential for communication within the nervous system.
a receptor structure in a ligand-gated sodium-ion pore. The receptor is like a cave which is an outer part of a protein structure which also has a tunnel which can be open or closed, and the presence of the neurotransmitter causes the tunnel (pore) to open.
Excitatory neurotransmitter
When acetylcholine binds to its receptor in the sarcolemma of a muscle cell, it triggers an action potential to be generated along the muscle cell membrane. This action potential then spreads along the sarcolemma and eventually leads to muscle contraction by initiating the release of calcium ions from the sarcoplasmic reticulum.
Multiple receptor subtypes allow for more "fine-tuned" neuromodulation of a given "signal" in a neural network. Each receptor subtype typically has a different binding affinity for the given neurotransmitter. Therefore, the neurotransmitter may bind more strongly or more weakly to one subtype over another. This is most likely an effect of genetic variation, as the genes coding for the protein(s) present in the receptor slightly vary from subtype to subtype, yet still allow for binding by the neurotransmitter ligand.
Since only 1 neurotransmitter fits in the receptor sites, you can say that the receptor sites is the locked door waiting for the neurotransmitter "keys".
SEROTONIN is a neurotransmitter that inhibits pain by blocking pain causing chemicals out of their receptor sites
A molecule such as a neurotransmitter or hormone that binds to a receptor is called a ligand. This binding triggers a biological response in the target cell, influencing its function.
beta neuron
a key fitting in the lock of a door
Neurotransmitter receptor sites on ligand-gated ion pores.
How a neurotransmitter interacts with the receptors determines its effects. They activate receptors to perform specific functions in the body.the type of receptor
ligand that binds to it. For example, a receptor can trigger different signaling pathways or cellular responses if it binds to different ligands, even if they bind to the same binding site on the receptor. This is known as ligand-dependent receptor activation.
agonists Chemical substances that mimic or enhance the effects of a neurotransmitter on the receptor sites of the next cell, increasing or decreasing the activity of that cell. Drug that enhances the effects of a particular neurotransmitter.
Muscarinic Receptor