Beta Receptors
Beta receptors are a type of protein found on the surface of cells that respond to hormones like epinephrine and norepinephrine. They play a crucial role in the body's response to stress, helping to regulate functions such as heart rate, blood pressure, and metabolism. There are three main types: beta-1, beta-2, and beta-3, each with specific roles in different tissues.
When activated, beta-1 receptors primarily increase heart rate and force of contraction, while beta-2 receptors help relax smooth muscles in the airways and blood vessels. Beta-3 receptors are involved in fat metabolism. Understanding these receptors is essential for developing medications that target various health conditions.