Alpha-1 adrenergic receptors

Alpha-1 adrenergic receptors are specialized proteins located on certain cells in your body, especially in blood vessels. When they are activated by a hormone called norepinephrine, they cause blood vessels to constrict, leading to increased blood pressure. This process helps the body respond to stress or emergencies by directing blood flow to vital organs. These receptors also influence other functions such as controlling pupil size and organ activity. Medications targeting alpha-1 receptors are used to treat conditions like high blood pressure and certain types of nasal congestion.