Alpha-1 receptors

Alpha-1 receptors are a type of protein found on the surfaces of certain cells in the body. They play a key role in the body's response to hormones, particularly adrenaline and norepinephrine. When these hormones bind to alpha-1 receptors, it causes various effects, such as constricting blood vessels and increasing blood pressure. This response is important for regulating blood flow and reacting to stress, helping the body prepare for "fight or flight" situations. Alpha-1 receptors are important in medicine, as they can be targeted by medications to treat conditions like high blood pressure.