Muscle relaxants are a type of medication that work by inhibiting the action of acetylcholine, a neurotransmitter that plays a key role in muscle function. When acetylcholine is released from nerve endings in the body, it binds to receptors on muscle cells and activates them, causing the muscles to contract.
Inhibiting acetylcholine reception means that the muscle relaxant blocks the acetylcholine receptors on muscle cells, preventing the acetylcholine from binding to them and activating the muscles. This can occur at any point in the process where acetylcholine is being released and trying to bind to receptors on muscle cells.
When acetylcholine reception is blocked, muscle function is impaired. The muscles will not be able to contract as strongly or as frequently, which can lead to a feeling of muscle relaxation and decreased muscle tone. This is why muscle relaxants are often used to treat conditions such as spasticity and muscle spasms, as they can help to reduce muscle stiffness and improve mobility. However, it is important to note that muscle relaxants can also cause side effects such as drowsiness, dizziness, and impaired thinking and coordination, so they should be used with caution.