Antagonist

An antagonist is a muscle or substance that opposes another muscle or process in the body.

1. The antagonist muscle works opposite to the agonist muscle, helping a person make movements. For example, when bending the arm at the elbow, the biceps acts as an agonist, and the triceps acts as an antagonist, relaxing and allowing the arm to bend.

2. An antagonist drug acts opposite to another substance in the body. For example, antimetabolites interfere with the action of metabolites, disrupting the metabolism in tumor cells.

Thus, the antagonist always opposes the agonist or some process. This is an important mechanism that allows the body to maintain balance and function normally.

1. A muscle that acts in opposition to another muscle (called an agonist or prime mover). The work of agonist and antagonist muscles allows a person to move normally.

2. A medicinal or any other substance that has an effect opposite to another medicinal substance or to any chemical process in the human body. An example of this is antimetabolites.

Antagonism - opposite action, reaction.

Antagonists are two muscles that work opposite each other. For example, when you raise your arm up, the agonist muscle - the biceps - works to raise the arm, and the antagonist muscle - the triceps - works to lower the arm down.

Antagonists can also be used as drugs. For example, antimetabolites are drugs that have opposite effects on other chemical processes in the body, such as glucose or cholesterol metabolism.

The use of antagonists can be useful in treating various conditions such as muscle spasms, joint pain or osteoarthritis. However, the use of antagonists should be under the supervision of a physician and should not be used unnecessarily.