Tag Richard N. Mitchell

The Heart

The human heart is a remarkably efficient, durable, and reliable pump, propelling more than 7500 L of blood through the body each day, and beating more than 40 million times a year—the wellspring for tissue oxygenation, nutrition, and waste removal. In…

Blood Vessels

Vascular pathology is responsible for more morbidity and mortality than any other category of human disease. Although the most clinically significant lesions involve arteries, venous disorders are not inconsequential. Two principal mechanisms underlie vascular disease: Narrowing (stenosis) or complete obstruction…