Vascular smooth muscle

Vascular smooth muscle consists of specialized muscle cells found in the walls of blood vessels. These cells are involuntary, meaning they operate automatically without conscious control. They contract and relax to regulate the diameter of blood vessels, influencing blood flow and pressure throughout the body. When they contract, vessels narrow, increasing pressure; when relaxed, vessels widen, reducing pressure. This process is essential for maintaining proper circulation, directing blood to different organs as needed, and responding to signals that control blood pressure and flow. Vascular smooth muscle plays a vital role in cardiovascular health and disease regulation.